RAM JET Shotgun Slug Design - Stendebach II (Germany)

I received some more unusual European slugs from a viewer named Emiliano in Italy. These are German slugs that weigh 36g. (1 oz. is 28g) The design is over 100 years old, and is a design few people would pursue because it seems to goes against the laws of aerodynamics and the understandings of supersonic principles. Most slugs are very nose-heavy, and have a light tail to create stabilization and they usually have a round nose for a streamlined profile. Stendebach threw all that out the window and created one of the oddest slugs we have shot. The design was so successful, it was worth stealing, I mean "invented" by a Russian 60 years later.
Don't believe the Stendebach Ideal slugs were from the early 1900's? here is a patent for other slugs Stendebach came up with. Note the date.
www.google.ch/...
The problems we had with the slugs were the result of just not knowing the correct load data with these. The site that sells them provides little information, and there is ONLY one place that seems to sell these slugs. However, we finally got the slugs working after a few weeks from trial and error. The Russian Mayer Bullets were not finicky at all, as we shot them with different types of shells, low and high brass, etc with very good results each time.
The shooting stand Darren was using is called the CTK P3 Ultimate shooting rest.
www.ctkprecisio...
You can also find it at Midway USA.

[@1976pmiller]

Nothing wrong with these slugs. They were designed for hunting after spending hours in the beer gardens. Aim wobbly , it hits the target just fine. Lager compensated aiming design. Genius

[@spinalkid]

LOL u r GENIUS

[@Thelothuo]

+paul miller It also prechews whatever you hit with it. That slug quite literally bit the vest and took a chunk out of it.

[@benmasta5814]

hahaha nice

[@lutascheier]

paul miller No. In German Bier and Schnapps is "aming water" so you drink it to aim better, which if course is a misconception, so you're probably right.

[@Sokar12345]

german ammo is designed to be shot east or west. so by shooting north you probably got some interference with the earth magnetic field which caused them to try and correct to the proper direction.

[@moiramay1942]

omg did you really just

[@Prideace93]

i think east and west only effected the borealis or something effect. meaning the distance of the projectile

[@psychopyro5781]

Lol I like it

[@JohnSmith-ir5yu]

i'm german and i can confirm this

[@vakusdrake3224]

Yeah those effects only apply in the north and south hemispheres, that's why he should have shot from the east or west hemispheres.

[@kes7774]

Stendbach's slug bullet🇩🇪 was manufactured under the name "Ideal Bullet" in Japan🇯🇵 by Kawaguchi-ya Hayashi Gunpowder Shop (K.F.C.). From the Taisho era to the 1970s, K.F.C. mainly sold ideal bullets for Murata-style shotguns. Around the 1964 Tokyo Olympics, K.F.C. began selling "Puma rockets", which are very similar to modern Foster-type rifled slug bullets, so with the transition to paper shotshells using smokeless powder, the Ideal bullets were no longer used. This slug bullet was well known to hunters of my grandfather's generation, but I think most Japanese hunters today have never even seen it. Thank you for releasing this valuable verification video. As a side note, there is detailed information about K.F.C.'s Puma rocket in the U.S. patent "US4043267A," and it was ultimately envisioned that it would use plastic wads called "tail wads." This was very similar in concept to the modern mainstream Plumbata Slug, but I've never seen it in real life.

[@mrclucker1969]

The RTCW music is very atmospheric - nice choice for these unusual German/Russian rounds. (Plus it takes me back to sneaking around avoiding the guards in the game)

[@taofledermaus]

Such a fun game. The Snooper rifles... the FG42, so much fun.

[@miky1200]

I knew I could not be the only one that noticed that! But yea, brings back some good gaming memories :)

[@jaxkson1]

Return to Castle Wolfenstein music, nice. Anyone else notice that too?

[@CheezyDee]

Mein Gott! Teufelvolk!

[@TheRoboJesus]

I'm so glad I'm not the only one who picked up on that, haha!

[@hanfpeter3742]

+Cheezy Dee its Teufelsvolk...XD

[@cesarmaltez]

Feeling nostalgic

[@SnowlandX]

Other vid had it too. I like it.

[@zv4822]

On February 3, 2016, Alexander Karlovich Mayer died at the age of 90. RIP He was ethnically German, but was born in the USSR, in the city of Tbilisi, now Georgia. The Mayer slugs is a lead caliber slugs - quite accurate, not the simplest, but available for self-casting. And the accuracy is largely due to these ribs in the back of the slugs, but not because they give it rotation. In fact, the inventor of the slugs was not even a gunsmith, he made it for his own needs, working in the workshop at the observatory. It was planned that the heavier head part of the slugs would stabilize it in flight, like any arrow-type slugs, but the main difference was to be a "double turbine". After all, the inclined ribs, which, according to the author's plan, were supposed to twist the slugs in the air, are not only on the outside of the shank, but also in the central hole that goes through the entire slugs, through and through. Therefore, the Mayer slugs can be attributed to both arrow-type and turbine-type slugs. Slugs, indeed, turned out to be successful and quite accurate. Although there was no significant stabilization from its two turbines. I think Meyer had knowledge of the German bullet, and just upgraded it, making it a double turbine.

[@-HustleUnion-]

AvE's channel is awesome lots of information packed in all his videos

[@LunchBXcrue]

Man that shot to the giant gummy bear was awesome the way it showed how much the area around expanded.

[@timothyhayes9724]

I'm reminded of a Rifleman magazine article about this kind of thing. A lot of people have tried the hollow bullet concept before including the US Army and they found that at supersonic speeds, holes that small might as well be closed. The air can't compress and go through like a ramjet because the cross section is to small.

[@taofledermaus]

Yep! exactly!

[@bleepinjeep]

Is it not possible to put the high speed camera 10 to 20 ft in front of the shotgun? Seems like that would solve a lot of your smoke problems and give a better quality shot.

[@SurvivalRussia]

Great video and info. Interesting to note that the cut shell seems to be Swedish and from Bofors but "Sweden" is spelled "Svezia", which is the Russian way of pronouncing Sweden. Also Mayer is of course a German surname. I like the longer format videos but i understand why you do not make too many of them :)

[@taofledermaus]

I really wanted to show both the problems I had with these, and show them functioning. I never had that was more finicky. The Mayer bullets did not care how I loaded them, they just worked. I'm still amazed by those.

[@weirdsciencethe2nd205]

The sweeds make awsome artillery and big guns there modern stuffs sci fi

[@zv4822]

@@taofledermaus The Mayer slugs is a lead caliber slugs - quite accurate, not the simplest, but available for self-casting. And the accuracy is largely due to these ribs in the back of the slugs, but not because they give it rotation. In fact, the inventor of the slugs was not even a gunsmith, he made it for his own needs, working in the workshop at the observatory. It was planned that the heavier head part of the slugs would stabilize it in flight, like any arrow-type slugs, but the main difference was to be a "double turbine". After all, the inclined ribs, which, according to the author's plan, were supposed to twist the slugs in the air, are not only on the outside of the shank, but also in the central hole that goes through the entire slugs, through and through. Therefore, the Mayer slugs can be attributed to both arrow-type and turbine-type slugs. Slugs, indeed, turned out to be successful and quite accurate. Although there was no significant stabilization from its two turbines. I think Meyer had knowledge of the German slugs, and just upgraded it, making it a double turbine.

[@x9x9x9x9x9]

Jeff I don't think I have ever complimented you on your hard work and surprisingly good high speed footage for the gear you have. Seriously man your work is amazing for not having a phantom. Hell your footage is better than some phantom footage I have seen.

[@JesseAndMike]

Haha, those are some unusual slugs! LOL! Another awesome video!! Liked! :)

[@taofledermaus]

thank you Jesse and Mike!!

[@magnus5356]

Just a note, the cut a part of what you reference to as 'German' are clearly marked 'Bofors' and 'Svezia'. Bofors is a Swedish company...

[@lonewanderer3603]

if it looks backwards, maybe you should try to load and fire one backwards.

[@tblbaby]

Great stuff! Love the testing of results out of these things. Spin stabilization is specific to the spin vs the projectile, as in a longer conical projectile requires faster spin to stabilize. Too fast and it fraps out and becomes unstable. Too slow and it wobbles. Spin stabilization is always important. Distance tells it. Riflings in a barrel are a means of spin, so are riflings in a slug. Riflings in barrels helped even round balls accuracy dramatically. The first rifles without riflings were not very accurate. If you're an inch off at 10 yards you'll be 10 inches off at 100 yards IF it continues on stable trajectory. BUT a bullet not spinning will amplify it's error over distance as instability adds instability and the added instability adds more, and deviation multiplies. Round balls out of smooth bore muskets were good for a few yards, accurate enough to do a job, but at distance they went to hell.

[@taofledermaus]

I think if these slugs didn't have the 2 external vanes, they'd probably work better with rifling. But the vanes just end up acting like paddles and try to propel the slug a little- seemingly to the side instead of straight forward.

[@tblbaby]

***** Yeah, rifling is made to grab a consistent surface and spin the bullet. Rifled slugs grab a smooth barrel and impart spin to the bullet. If you have conflicting forces working it's bound to be a mess.

[@taofledermaus]

Yes!

[@tblbaby]

***** Yes!

[@rohanrohanrohan8915]

Cool vid

[@wreck_ignition7847]

+Taofledermaus. Another rad video Jeff. I'm loving these projectiles from *a round the world*!

[@taofledermaus]

Thanks! Hopefully we'll get some other examples from other countries.

[@wixte]

This is the reason why I love German guns/Weaponry.. They make stuff before anyone gets to it. Aside from the Semi automatic pistol.. which was... Belgium? Austrian?

[@hanfpeter3742]

the first true automatic- pistol was invented by hugo borchardt in the USA. And he was a german, so...

[@tblbaby]

They almost had the nuclear bomb first, we stole it from them. Imagine life or the lack there of if we hadn't gotten to it before they perfected the tech for the bomb and delivery. Now imagine we just gave that shit to the Iranians DEATH TO THE WORLD! Thanks Obama, thank you Hillary, thank you George Soros O_O we gave 700 AD assholes nukes, and the tech to use them. Live the next few years well!

[@paranoiia8]

Borchardt C-93 was first mass produced automatic pistol, and it was made in Germany. And yes, if you look closer to inventions that was made in USA, you gonna find that more than half of them where made by people who where born in Europe, study there, and then because of different reason they moved to USA. Also because America used different patent system, they really liked to call something FIRST... even if it was used for long time, but was just not patented. For example, latest Apple idea of patenting... trees and table that they patented in Asia. www.patentlyapple.com/patently-apple/2016/07/apple-wins-a-design-patent-for-the-apple-stores-grove.html Americans really like to make really stupid patents and call it first, even if it was used before.

[@tblbaby]

Akinaro The French invented smokeless powder and launched a new era of fire arms efficiency. You've been taught a lot of hate USA propaganda. The super wealthy in the world hate the individual empowerment the US had up until recently, and push propaganda through the UN and educational systems because the Constitution and system in the USA for so many years created a majorly dominant extremely wealthy productive inventive culture. They also push hate of Western Culture in general and white people, especially men. Haven't you noticed? Vilification of white males? BUTT I digress. The situation in the USA has inspired extreme inventiveness because of it's system and diversity. Formal Education doesn't help much towards fresh invention, though it does inspire innovation of existing invention. Practical applications and a lack of being indoctrinated does inspire ground breaking invention. Much of the great innovation in the US came from people with an 8th grade or lower education. People who do the same job every day. People who go to institutions which teach the same shit, especially government directed shit lose parts of their brain function. There was a study in Japan using MRI where people who live in a city and go to work to the same job every day actually experience shrinkage in certain areas of the brain. Conversely diverse experiences, problems in need of solution and a wide range of needed activity create an awareness you can't get without it. For example, students who study music along with academics do markedly better on academics. This is because it opens up a basis of understanding in more diverse areas making learning much easier because of the points of perspective being fortified with real practical understanding. As civilization develops things get more set for people. Groups are more specialized. Cognition decreases in wide range and focuses on the more narrow requirements. Conversely people in cities develop heightened linguistic skill because their life's success is directly dependent on dealing with people almost entirely in many people's circumstances. They become more apt to heavily focus on their facade, others perception, than what they really are. They become dishonest because in that environment perception is what matters. The perception of others is their world and it's how they get what they need. Again, the US has been a boon for the world in areas of invention in many areas. No need for the poisonous scorn which has been taught by media and institutions. That plays right into the hands of people who are not your friends. Who'd most like to see you as close as they can to a feckless stupid animal.

[@paranoiia8]

hahahahha... oh men, you made my day... I was seriously just making fun of latest Apple patent, because I read about it few minutes before watching that video... and you give me monologue about... what exactly? Because I have no idea... But to be honest USA is not special at all, its the same deep shit hole as any other country so any annoying propaganda monologue that would say that "its better" or "it give possibilities" is just a empty talking that should be put in trash. And no mater what we invent here in Europe or there in USA, Asians gonna make it more and better xD

[@andie_pants]

As a professor of mine once said: The entirety of art history can be summed up with the simple phrase "Borrow, tweak, and make it your own."

[@GettinJunkDone]

Every time I come to your channel I learn something. Very cool!

[@taofledermaus]

thanks Joe!

[@waytoocommon9198]

FYI, the Benelli Nova has a 2 bead sight. The small bead half way along the barrel is the "rear sight". I also own a Nova and aiming is gloriously easy at short ranges (never had a chance to make any longer shots). It's a glorious inexpensive shotgun.

[@kitaryakysubae3156]

Long barrel with tight and polished bore do wonders for shotgun range and accuracy, especially with slugs. Less friction in the barrel and longer time in barrel to let the gas pressure get the round to peak velicity. Long barrel shotguns with polished bore, and hopefully a properly hardened reciever and barrel.

[@taofledermaus]

could be!

[@antoniotorlentino5949]

Love your videos man! Keep up the good work

[@taofledermaus]

thank you Antonio!

[@tbmusic927]

Very interesting slug! Might have to buy some of these someday soon. (Also loved the Wolfenstein: Enemy Territory soundtrack as well!)

[@yveskc1]

Fascinating.. Flying pattern is mind boggling. Nice design! Thanks for sharing.

[@taofledermaus]

thanks!

[@oranjid]

thank you tao for also showing the old german advertising from the slugs. I love those old ads for gun related products. It gives very detailed information, even on the price and where you could order these 115 yaers ago in germany :-D I will give you american guys some translation of the old text (not the whole thing, just interesting parts:) "For 25 pieces 6 Reichsmark (the currency in germany used the time of the german empire) in Caliber 12 and 5,56 Reichsmark for caliber 16 and 20) of coure free house delivery is possible within the german empire" so the text claims ^^ If not available at "your local specialist"...and so on. Also it gives information on survey results from the manufacturer (so these are his own claims) on how accurate it is on specific distances and that this is 100% better than average available ammunition he compares it to. And he also gives some feedback from one of the persons using the slug on deer "best results on ranges below 60m, with a blackpowder load of 5.5 to 5.75 (metric) grams , compared to any other ammunition in smoothbore rifles." So basically a pure advertising text praising how good his ammunition is. So maybe interesting that it was designed for black powder and not smokeless, so it would most likely not reach the same speeds. That packaging could be museum worthy ^^ propably very rare

[@whatsnext8548]

These historical stuff are just so satisfying to watch, great video!

[@Black_noir_mw3]

I could watch yall smoke them target's for an eternity, it's always interesting

[@VolV8]

I like how fine the threading is on the choke device. Thanks for the clip :)

[@ABaumstumpf]

The first thing says that the Company was founded in 1902, the later shows a variety of slugs with their price and a short description of how they performed when tested at a distance of 75 steps (pace - normaly about 75 cm per step) so roughly 60 yards. And well as germany (and well Europe) was at war nearly constantly, yeah, they tried quite a lot of different things. V3 canon, Heavy Gustaf and other things.

[@RAkers-tu1ey]

My dear TFM, I freely acknowledge that you have become the ultimate GURU of odd shotgun rounds. And, I LOVE these Videos! that said, You are also really good at telling a story with your high speed camera. I would love to see what you can do with various projectiles in a slingshot. I have been tinkering with these for years, and they are a lot of fun. But, they are very difficult to shoot accurately. I believe this may have to do with pocket / release issues drastically changing the point of impact. I am envisioning some sort of anchored sling shot, using an archery type release, and lots of different projectiles... marbles, steel shot, lead shot, rocks, etc. let me know if you are interested in this.

[@mattv2099]

wow. great vid. full of info. cool old russian slugazine

[@taofledermaus]

This was a pain in the butt. I've been working on this video for about 3 weeks.

[@mattv2099]

***** wow. that's too much time!

[@taofledermaus]

Yeah, the Russian slugs were a piece of cake, they just worked. I didn't want to show these slugs NOT working when I knew they would work once I figured out the right setup

[@clouster75]

Calling it "stolen" - is very serious claim here tbh. These are definitely different slugs. It would be "stolen" if it would be 1 to 1 copy. Same way somebody can claim that you stolen idea of channel with slo-mo ballistic footages from some random guy on youtube.

[@pinjohnston3706]

Return to castle Wolfenstein music!!!! Nice!!

[@Anvilshock]

Knew I remembered it from somewhere!

[@boyke2412]

it was in the back of my mind

[@bvsteel]

loled at the ballistic bears, love all your videos! Education and entertainment!

[@cbremer83]

AvE is bad ass. He is just fun to listen to. lol It's just a bonus that his vids are interesting as well.

[@itohjoe]

The metal fin taper at the bottom of the shot is creating a vacuum holding the plastic wadd to the back.

[@Warrior2200]

Man, I love this channel.

[@taofledermaus]

thanks!

[@iainclark8695]

That's the second time I've seen that bird in the background. I think she deserves a credit guys. Don't wanna be like the daily mail now do we?

[@richardpeterson3753]

trips me out every time with the gel. naked eye you can't really see that massive expansion but in slow mo it looks ridiculous. pretty neat stuff

[@eisenfell]

As a german I have to say: I absolutely love how you speak Stendebach. :D

[@taofledermaus]

haha, thanks

[@gigabytegallery7305]

That shot at 0:04 seconds sounds much like a sci-fi blast XD it's pretty rad "PsssSSShuuuung~~!"

[@Washman-jw3hl]

nice research work. I love these foreign slug videos you guys are putting up. keep up the great work and thank you for sharing

[@taofledermaus]

Thanks! I'm hoping to find some from other European countries.

[@polynikes5631]

Why is Officer Greg shooting shit and making corny jokes the best thing ever?

[@dhoffnun]

Skookum as frig.

[@MisterCheemf]

she sure chooches excellently

[@mandrac2]

It's chooching at least.

[@alexking7682]

Fantastic, as usual. Keep it up guys!

[@taofledermaus]

thanke Alex!

[@alexking7682]

+TAOFLEDERMAUS Never a problem, always a pleasure.

[@adawg3032]

Dude we need to start a gofundme to get these guys some phantom high speed cameras And the reason the wad sticks to the back is because the taper causes a Venturi effect which sucks the wads to the back end thats the only thing I can think of

[@72151]

I really like how you guys do these experiments. I realize this is a while ago, but still good 👍

[@otakuribo]

I've always enjoyed your videos, but you've really stepped up your production game lately. 😀👍

[@billburns9260]

Damn! Thanks Jeff! I Definitely Loved Watching This Absolutely Badass "Bass Ackwards" Slug!.. Great Video in Every Aspect! Thanks! & Have a Great Evening!.

[@GeneralG1810]

Can we have a moments silence for all the gummy bears that have given their lives to make your videos

[@SovietGrazz]

Just because the nitro card was held against the back by external airflow effects doesn't mean that it wouldn't pass air through the centre given the chance. It just means that the air pressure pushing it against the rear was greater than the air pressure going through the centre. Example: Imagine you have a standard bullet tip, but you put a big plastic cap on the tip with a flat top. Just because the cap might not get blown or spun off, doesn't mean it's not interfering with the aerodynamics. The only difference in this example is that it's more intuitive that air pressure is holding the plastic cap in place. PS: Not sure how you can say that the Mayer 'stole' the design from Stendebach while also saying they performed much better. Obviously the design is different in that case ....

[@aaronjay4896]

4:34 that little bird flew right through the shot, lol

[@MylesNicholas]

The curved outer surface makes a high pressure are on the outside of the slug. Therefore the inner surface is a low pressure area, that is why the nitro card adheres to the base.

[@DIMZEROCENT]

Very interesting comments by Jeff ... fasten your seatbelt Mr Spielberg !

[@bspinnacle4669]

I would love these guys to one day get one of those phantom slow motion cameras! I think it would be cool to see the rotation of the bullets at an even slower speed and stuff

[@daddanet74]

back then the guys had their brains.

[@125hatsan]

really interesting slugs but this should be a solution to the nitro card sticking. In order to make the nitro card drop immediately after being shot use two nitro cards, one with a hole slightly smaller than the one in the slug and one nitro card without a hole and then assemble the shot like this; shotgun shell -- piston / wadding -- nitro card without hole -- nitro card with hole -- slug with center hole. This in theory should allow air to travel through the slug immediately after it leaves the barrel, and because the hole in the nitro card is slightly smaller than the hole in the slug, the moving air should catch and pull the nitro card away from the slug during flight.

[@MegaRazorback]

thing is this design of this slug may have originated somewhere in 1902 or later but the Russians may have gotten permission some time after WW1 to manufacture their own, similar version of the slug. and as a few people have said, the date on the paper is the founding date of the company, not the manufacture date of the slugs themselves.

[@AlphasysNl]

The slugs of this basic design principle, seem to get some powerful jaws on impact. The large cavity seems to create a low pressure region inside and the front of the bullet collapses into it on impact, nipping a piece of the impacted material clean off, encasing it inside.

[@onpsxmember]

It's really cool to read that old german advertisement. Just an hour drive from my home. If you ever have some old german information that could help you figure things out, I can translate it if need be. The first Stendebach text says his bullet made one revolution every 8 meters by itself and at 60 meters distance he had a groups of 13cm. I wonder if it flies totally straight with rifling if the center is drilled out to all the same inner diameter, and then trying different twist rates. I have no clue about supersonic fluid-dynamics, but holding the little plate in the back by suction sounds like the venturi-effect is working by the diameter difference on the inside. I wonder what the pressure distribution looks like.

[@corpsie666]

The low pressure zone in the rear of the slug is drag

[@corwinhyatt519]

I keep thinking that these work like an annular/closed wing, but with how they fly with the shot card suctioned to the back I'm not sure.

[@corwinhyatt519]

Maybe with the shot card suctioned to the slug it operates like a conventional hollow point until the pressure inside the slug's cavity approaches equal to the exterior pressure around the slug due to loss in velocity at which time it might transition to an annular wing for stability? I'm really sketchy on the physics of it though.

[@Mr3Kidneys]

It makes sense if you think about it, clearly the force holding the circle to the back overcomes the force of the air pushing through the hole. But the force that pressure exerts on something is determined by surface area, hence the units of measurement (lbs. PER sq in. for instance). So even though the PRESSURE is higher inside the bullet, the FORCE is less because it's just a small part of the center being pushed. Meanwhile the entire surface of the back is being pushed. And you're right, by blocking that hole it essentially has the aerodynamics of a hollow point. I see his thinking, and what's actually happening is kinda counter-intuitive, so I understand his conclusion that little to no air was flowing through, but that REALLY doesn't make sense, haha. He should have thought this: high pressure in front of projectile, low pressure behind. If you connect two areas of differing pressure with a hole, then air will flow. The bigger the difference, the more the flow. There would be LOTS of air flowing through that channel, I don't know how that would effect flight, but I'm sure it would. It would at least reduce drag.

[@corwinhyatt519]

So the force of the lower pressure outside of the round over the larger surface area of the shot card is sufficiently greater than the force within the round that is pushing at higher pressure against the much smaller exposed area of the shot cup resulting in the pressures "gluing" the shot card to the back of the round until they equalize?

[@corpsie666]

+Mr3Kidneys - It makes perfect sense that no air was flowing through the center of the slug when the card stuck.

[@overfiend2069]

Germans were way ahead of what we had here in America back in the 1900's. The Horten brothers were flying, flying wings for sail planes back then. We didn't even start with flying wings until near the end of WWII. Had Germany waited a few years before starting WWII, we would have been in really deep shit.

[@Liqtor]

The shell at :50 show some interesting text. "NOBELKRUT" is Nobel Gunpowder. Named after Alfred Nobel. As in the Nobel Price. Next line is "BOFORS", old Swedish weapons and ammo manufacturer. Now owned by BAE systems. The old logo is printed on the top, "B" with two lions. Last line, "Svezia" is "Sweden" in some language, so the shell was made in Sweden.

[@hop3881]

4:40- bird in the background be like "im out im out im out IM OUT!"

[@Prideace93]

sir, i think you nrrd to try use a full rifled barrel instead of rifled choke tube. this may due to its change of movement from smooth to spinning. meaning its better if it has a single movement instead of two (from beginning movement the projectile must flow either straight barrel or spinning. cannot be both). pls try it. plus if you want better wadding, i believe matt from demolition ranch once use a wooden wadding. it turns to perform better i think

[@docthebiker]

The shock wave in front of the slug means there is no aerodynamic stabilization. In fact with the shot-card sticking to the back it appears to be more stable, so it's not air going through the slug giving any spin or fin guidance. I think it might possibly be riding a "hollow" shock wave. You know what a supersonic shock wave off a pointed slug looks like. It's conical right? Well I'm thinking a torus leading edge might create a slight flattening to the point of the cone, or a weak point. And while it is very hard to break out through the boundary of a shock cone, causing it to have a weak front means the shell is always trying to follow the path of least resistance. That is forwards through the weak nose, or turbulent air at the front of the shock cone.

[@johnsetlock9663]

The slug is weight forward, as the inner hole Diameter is larger at front so is the external diameter, the back side has smaller diameter both inside and out. The internal ribs at the rear give structural strength at launch since all iniertial load needs to be transferred from back of the slug when fired.

[@th3lazypirate879]

The people who are complaining about the shells are swedish is wrong, yes they where (made) in Sweden by bofors but, still designed by a German.

[@SamuraiAkechi]

0:40 Stendebach slug aka "Ideal" slug, as it was marketed back in the past, was quite known in Russia, being imported even before WWI, so Mayer was pretty much improving the existing design. To this day there's a lot of Meyer and Ideal slugs for sale in the shops for ammo loading. There was a lot of indigenous slug designs as well as few borrowed, like Blondeau or Kelly-McAlvain slug (kzbin.info/www/bejne/f3SZnZmfps2Kabs, it was copied by Kirovsk factory where Victor Polev used to work, and its performance was considered subpar). There's another specific slug that was popular before WWII, but fell out of use after that, and that would be Yakanis slug or Jakan, designed in Latvia (back then a part of Russian Empire). Apparently, the construction was decent for smoke powder, but would shatter or deform with smokeless, unlike Mayer or Stendebach's designs. Nobody even makes those anymore, though they were a huge thing.

[@johndessoye]

best channel on youtube. love watching your videos!

[@tarstakars]

You know I don't know if you're going to read this because this videos pretty old but Lars at survival Russia had a video of him loading some antique Russian 12 gauge shells and they were still using the same kind of fibrous Excelsior type of material underneath the shot card and he was getting some pretty good results from a double barrel shotgun

[@fungoidfest100]

You might try a lead ball. I used to use .58 cal. lead balls wrapped with a couple of patches in a 16 ga. They shot well, and very fast, out of Federal 'high-brass' hunting loads.

[@ATSucks1]

So far this seems like best slug. I was watching your Russian hallow slugs and they seemed nice and then I saw this.... Previously I thought the pellet rifle style slugs were best slugs...I mean they are accurate and powerful... but this internal stuff.... especially this particular one... just wow... this may be best slug for power and accuracy.

[@savannahwarwillow]

I see your using the menu music from return to castle wolfenstien

[@Marco-nx5tj]

if you didn't no rifling only works when the rifling spins it at the proper rpm

[@MistaCheezySTEAM]

Sick vid dude

[@taofledermaus]

thanks!

[@leonstrongbow2410]

rtcw background music is soooo cool.

[@ivankrylov6270]

Schlieren photography was invented in 1864 to study trans-sonic motion, so it's entirely believable that this was invented almost forty years later. This slug most likely exploits the shock waves generated by its shape to increase its stability. The most interesting part of it though is that it creates a HIGH pressure zone behind it, and a low pressure zone in the cavity, which is why the wadding stays attached the entire time. And it's entirely possible that Mayer didnt know about a bullet invented sixty years ago, and used the same principles to do the same thing. Also "Mayer" is not a Russian name, he was most likely German.

[@Rascal77s]

The internal structure was meant to do something inside the target, not outside it.

[@macob6076]

just saying, the "Stendebach, Geschoß-Fabrik, gegründet 1902" means "Stendebach, bullet-factory, founded in 1902". so only the factory was founded then, the bullets might very well be younger.

[@moonliteX]

these look like something out of ikea furniture

[@elementalist1984]

I'd try two things. 1. Load them in the shell backwards. The way they look like they'd be. And or 2. Use a nylon washer instead of a nitro card. See if the air will flow through the center Of course its always possible that neither of these suggestions would work.

[@slysci5]

So as a mechanical engi i feel compelled to explain this. At subsonic speeds aerodynamics works as we expect . specifically what you would expect is for a hole that tapers to act as a nozzle and accelerate the air through it. However at supersonic speeds this effect is reversed and it acts as a diffuser. the air flow rate through it is reduced quite a bit. the result is an area of very low pressure (that compared to the outside of the bullet is enough to keep your wadding stuck to the back of the bullet... its the low air pressure.). Technically that little bit of info comes from rocket science sooo this bullet was made by a rocket scientist 😂😂

[@deathvalley006]

That german round shows no mercy.

[@asskicker6557]

very interesting,that they thought of that way back when.

[@philh.9618]

The cool thing about German designs is that u find them in the Internet

[@packerdj9846]

Ok, terrible suggestion #3, who are we gonna shoot with this slug? I'll volunteer for this one but the next ones, someone else has to volunteer

[@Bindahaha]

Great to know if there are notes on this design, if not the actual testing notes, just notes about what tests were planned or completed. Unlikely but would be nice if they existed to see what the thinking was.

[@maxximumb]

I'm surprised you didn't load one backwards, just to see what happens. Great video though.

[@taofledermaus]

The real challenge was just figuring out how to load them so we got consistent-ish results. Very difficult slug to work with. The Russian slugs didn't care how I loaded them.

[@latemanparodius5133]

That last shot looked like it had some of the vest stuck inside it when you looked at the back, like it had just taken a circular bite out of it as the lead deformed.

[@andyp5899]

I did wonder if you had cut a groove across the wadding that might have cured the sticking wadding.

[@danbywater6333]

I think it's awesome them slugs are so old. I wonder if they tested them back then like you are today

[@dragonbutt]

Also, again, these things are fantastic wadcutters. I'd love to have some just for shooting paper!

[@PsylomeAlpha]

that benelli nova is a very pretty shotgun.

[@Mike_858]

+1 for using music from ''Return To Castle Wolfenstein''. :D

[@rippertrain]

awesome explanation i love the commentary

[@szcl]

5:15 - 5:20 u got my like now ^^

[@theroundaboutcat]

Is that return to castle wolfenstein music I hear?

[@EQINOX187]

haha was just going to type the same thing.

[@RodoDendrS]

Music made me installing that game again. :)

[@taofledermaus]

I know, I need to reinstall it and play some SP.

[@theroundaboutcat]

+TAOFLEDERMAUS I reinstall and play through it probably once a year. love that game

[@ORLY21]

They used some of it for the Wolfenstein: Enemy Territory game, too. Good grief, the hours I spent on that game...

[@redneckgenius]

Jeff Have ya thought about mounting a laser to the shotgun. Give us a dot on the target. In addition to seeing the point of ai, we could see how the dot shifts during the shot.

[@WorldEagleKW]

The date you saw in the catalog "Gegründet" means the year the company was founded, not the year the product inside was manufactured.

[@taofledermaus]

Yes, but we also found patents from him before that date.

[@WorldEagleKW]

***** Cool!