The "MACH-71" Super Perforator Slug - TESTED

Kyle from northern California fabricated a projectile.
He calls these the "Mach-71" slugs as a tribute to the SR-71 jet. The design actually gives these slugs some surprising attributes such such as penetration and also expansion of the aerodynamic body.
Check out Gregg's own channel!
/ @dangershow7798

[@chillaxter13]

This is one of the most impressive rounds I've seen here. Absolutely deserves full production. Can't wait to see the upgraded core

[@fartmeister]

Yeah, so the killing continues

[@bertram-raven]

I suspect these would be banned as a concept but it is difficult to know how any legislation would be worded without banning a lot of other legitimate ammo. This is why we have many gun laws which make no sense; an attempt to make a general law which took no account of collateral and unintended application. In a gun-fight, the only winners are lawyers.

[@nathanscott7910]

@@fartmeister Lord have mercy.

[@RehabProjectSRCB]

@@fartmeister Then why are you on a gun channel if you don't like guns? Some of us shoot for fun, only nut jobs and idiots untrained in guns would do that kind of shit just because. And just because you take guns from the good guys doesn't mean lives will be saved, just means only the bad guys will have them.

[@ZarkowsWorld]

@@fartmeister Why, are you a nutcase?

[@phoenixblades1]

The real question is are we able to order these for ourselves….

[@tinkertalksguns7289]

Those worked really well! Can't wait to see ones with a hardened steel or tungsten core.

[@matthewspencer5086]

I would advocate the hardened steel over the tungsten, because the balance is so close to perfect as it is, that it would be silly to change it. But when the Royal Navy adopted the .5" Vickers cartridge, Vickers offered them an "AP" round with a hardened steel core and a "practice" round with a mild steel core which was intended to fly to exactly the same point of aim for half the price. The latter went clean 18mm ship's plate at 300 yards, which was all the Royal Navy wanted, so they renamed it "semi-armor-piercing" and made it standard. The hardened core did better on face-hardened armour, but not very much better, and no fifty-calibre of any sort is actually a threat to an armoured warship, so the AP round was made in modest quantities and probably only supplied to units that actually asked for it.

[@EnjoyCocaColaLight]

@@matthewspencer5086 That is amazing!

[@tinkertalksguns7289]

@@matthewspencer5086 Great info- thanks for that!

[@r3struction]

And tungsten core!

[@alanaubryknight]

@@matthewspencer5086 And that is where World of Warships gets it from in their british and european lines of ships...cool!

[@captaincracks]

"Actually in Wales it's all in consonants, they have no vowels", this is the kind of humour I did not expect to come from the states but can really appreciate.

[@raymie28279]

You should hear the Welsh women talking. Very nice 👌

[@SteviePonder123]

@@raymie28279 Mae'r dynion siarad Cymraeg hefyd mêt

[@captaincracks]

@@raymie28279 I know what they sound like, I live in Wales :P

[@raymie28279]

@@captaincracks sorry I have a habit of thinking everyone on KZbin is from America lol

[@MegaDoom101]

Wales, the country that saw the word bus and said “no, it’s bws” because a W must be doubly as good as a single U. Also competitive shin kicking, need we elaborate further?

[@b1gl3w86]

Kyle is good friend of mine, and I always knew he was a very clever guy, but these slugs just blew me away, well done Kyle 😳 🙌

[@taofledermaus]

Really nice guy. He's already designing some new stuff.

[@kylekenney1907]

Thanks!

[@travij66]

I'd like to see these same slugs made with a Stainless steel core and Lead cup. That combination would be devastating to soft and hard targets.

[@ricco2113]

@@kylekenney1907 can u make slugs with copper and tungsten core?

[@karinchaney101]

Does Kyle have any plans on selling these?

[@DickHolman]

That's a miniature APCR round! Impressive work Kyle.

[@jamessidmouth]

Literally a tank round. Soft body to carry the energy with a penetrator to punch though the hard stuff. A work of art. Great shooting and amazing machining bravo Kyle 👏

[@dposcuro]

It is literally APCR.

[@ben5707]

@@dposcuro Had the same thought looking at it lol

[@JonathanSchattke]

nope, didn't go through 1/4", .50 cal anti-tank is MUCH better. Even a 36" barrel will go through almost 1/2" at 1000 yards. forum.il2sturmovik.com/uploads/monthly_2020_11/3.png.537a5d6ab70a6898c93e95b68235f897.png

[@templarsjustice4956]

@@JonathanSchattke Well yeah a 50 cal is gonna go through armor better lmfao. 50 bmg has double the velocity and 5 times the energy of a 12 gauge slug.

[@assassinatepsychoputin4151]

@@JonathanSchattke You can't compare the two TOTALLY different ya DICKHEAD

[@oldesertguy9616]

They have my vote for the best-looking slugs you've tested. Kyle is an artist.

[@KuzdaleA]

Gotta say how much I appreciate that your videos never became formulaic. It always feels organic, like a group of guys down the street doing awesome shit and not a big name studio cranking out thirty videos a day with the same revenue dedicated formula for each. They all feel human and after all these years I still come back and watch. Great work y'all

[@Brandon84J]

That is one HELL of a projectile. Props to the man Kyle for fabricating them. That's badass

[@DazsdWTP]

the fact the round same to a dead stop on the steel mean it imparted basically all its force into the plate, thats a pretty crazy feat in itself considering it didnt penn

[@Magdann]

The clean hole through the plate is insane 😱 and the slug had almost no scratch, really impressive.

[@tim7052]

Just like a FMJ projectile!! 👍

[@thatoldme1234]

@@tim7052 More like an APCR Shell

[@tim7052]

@ThatOldMe Well if you're ex/military then, you'd probably had seen those. I hunt dangerous game at close range in Africa - so can only draw on what Ive used in my experience.

[@TheNumbasign2]

What is the plate made of?

[@kirbyjoe7484]

@@TheNumbasign2 lead

[@jonbridge8064]

Shiny sleek projectiles, excellent penetration of the lead plate, interesting insertion into BranDoug's head and the OG finger wiggle. This video has everything.

[@worldtraveler930]

I was Also quite impressed with the OG finger wiggle and the hipster tattoo sleeve!!! 🤠👍

[@triblade1669]

I hope Kyle soon joins the ranks of the ballistic machinist and a few others that produce consistent impressive results.

[@TheGeekiestGuy]

Oof. That slug went through both sides of that helmet and Brandon. Thanks for taking us along for the ride, Jeff. Thanks for the marksmanship, O.G. Thank you for the awesome commentary, too, guys. 🤙🏽

[@taofledermaus]

thank you!!

[@OgsteveD1]

That's A Work Of Art, Congratulations 👏👏👏.

[@L337f33t]

Can’t wait to see the results from the next round of slugs with harder penetrating cores. The harder steel cores will certainly be interesting

[@themankool]

Tungsten or tool steel

[@YourMUMY]

@@themankool yes im thininking they will make it a sucsess in the open market

[@YourMUMY]

@@themankool silver steel over stressed tip?🙏

[@curtiswear1593]

Depleted uranium cores?over the top,huh??

[@stevenlloyd8576]

Nice to see another Welsh man watching tfm and make one hell of a projectile honestly can't wait to see his next batch

[@maccacovi]

And another Welshman here

[@thedisabledwelshman9266]

@@maccacovi and another one here.

[@skittles074]

Shwmae boyo's

[@Simon_Nonymous]

Great to see something from the UK of GB here, even better that it is from Wales!! Nice work Kyle! NB cool inkwork Greg, I must get mine done the same

[@nicholastaake4749]

Congratulations OG Greg for your accomplishmemt! You seem alive and very present.

[@robertdarnell5141]

That's actually really amazing, he essentially made an APCR type tank shell, the real penetrator is the core, the you guys made sabot petals making this round APCRDS (Armor Piercing Composite Rigid Discarding Sabot)

[@scottmorgan1016]

Fantastic slugs. Great job Kyle

[@matthewhall7976]

You know what?.. over rhe last two weeks ive been looking through some of the older videos on this channel and im loving it.. there's even odd videos that i missed at the time, like this video.. God bless you and your loved ones men..👍

[@taofledermaus]

thanks !!

[@joshuagibson2520]

I'm subbed to over 100 channels or more. This is the only one that I get genuinely excited about a new upload!

[@taofledermaus]

Dang you must sub to some really crappy channel! lol thanks

[@grey5135]

He did an amazing job making those. That is so awesome.

[@msa4548]

This slug has some definite potential, might be worth trying to get it produced en masse.

[@klarik01]

I'd for sure buy it.

[@Iko0025]

Super interesting - well done Kyle

[@taofledermaus]

Glad you enjoyed it!

[@eugeneallshouse5884]

Those slugs were amazing..they'd be a great hunting slug..I was surprised how well they performed..awesome video....great job Kyle...thanks guys

[@taofledermaus]

thank you

[@ZarkowsWorld]

@D R Yes, but when hunting some animals one also need to penetrate very deep to cause critical damage, hence this round could have specialty use-case.

[@jimcappa6815]

Great slugs! Can't wait to see the next iteration.

[@IronGunner10]

Amazing job, Kyle and team 👏 this was a great test, and awesome slug design!!!

[@taofledermaus]

Glad you enjoyed it!

[@pontiac_montana]

I would buy them just to look at 'em! There works of art and a damn powerful slug!

[@Roberto9696-q7s]

Kyle did an awesome job. He should definitely sell these slugs. I'm also curious how a tungsten core would perform

[@gilbertdelgado6703]

Great performance and fun, as usual, to watch.

[@taofledermaus]

Glad you enjoyed it

[@romanhlohowskyj]

Beautiful rounds. The way it mushroomed and dumped tons of energy while still having the steel penetrator keep going was impressive. And the way it blew threw the Kevlar. Very impressive round. Thank you guys for sharing it with us!!!

[@taofledermaus]

thank you Roman

[@txrick4879]

Amazing how well stabilized they are .

[@Kneumann1991]

I have watched nearly every one of these you make it we test it videos. I must say as an over all package these are the best I've seen as an over all package. Pin point accuracy, Great energy transfer and amazing penetration capability. Great job to Kyle and great job on the shooting and video.

[@taofledermaus]

thanks

[@ghadrackpotato960]

That is cool! I love the viewer's ingenuity. Wow!

[@codaman127]

That round is as close to a two stage rocket as you can get. The steel core just clings to most of the force being accelerated ahead of the aluminum exterior shell, and it makes up the bulk of it's force. That said, the aluminum shell itself is doing an incredible job of dumping it's inertia into the target (IE: The jelly block) while the core just burrows in deep. I'd have loved to see the state of some of those penetrated rounds that made it off into the distance, I'd imagine the aluminum would have been pressed back and inwards around the core to not have split off.

[@nathanwest2304]

I think he should contact ballistic machinist if he can make a small run with these, pretty sure these things would be a big hit

[@MyLonewolf25]

Absolutely And a few minor changes could make them an instant hit

[@nathanwest2304]

@@MyLonewolf25 that round would be really interesting in an elephant rifle, something like 700 nitro express :D

[@MyLonewolf25]

@@nathanwest2304 who was that guy pushing 12g to insane speeds like 2400 fps + These would be perfect

[@pyrosweets]

Watching this from Squadron 28 "Badass Blackbirds" from USAFA! Thanks for your entertaining channel.

[@taofledermaus]

thank you!

[@timbourque5095]

Nice job Kevin ! Can't wait for you up grade the core, and blessings to you and your people you have not been treated very well at all over there and shame on them, hopefully you people get to hold them accountable, you are not alone we have the same exact entity the same exact problem..

[@taofledermaus]

who is Kevin?

[@timbourque5095]

@@taofledermaus oh maybe that was not his name dam my bad .. 🤤

[@johnoconnor4941]

Officer Greg is a man of his word. He done gone breakdancing when he said, "I is going breakdancing." That's truth

[@ZombieB]

Good ballistics test. I don't know much about it, but it's good to learn from you guys and I'd appreciate it if you could show a little intro on the weapon in use at next time. Thanks for sharing.

[@legitbeans9078]

These are sick. Very nice work Kyle

[@general5104]

Kyle is a machinist. He has his stuff together! I figure he thought to have a hardened projectile that's pressed into a traveler, that will not melt in the shotgun, but, with the help of an old shotgun shell wrapped around it, it will spin out of the barrel and bury itself deep. Then, when the outside carrier nose flares & stops, it opens the press fit, & the inertia spits the hardened projectile on forward till the PUSH wears out! I'm a retired tool-designer & I imagine a lot of thought went into this punkin'-ball slug. 🙌🏁 Bill, from Tn., 🇺🇸

[@toddabbott781]

It definitely needs a tungsten core. I also think copper would be better than aluminum and score it 2/3 of the way down so maybe it will expand. I was also thinking a slightly smaller tungsten core with tiny steel rods around it that would fragment off. It would be a triple threat... expanding slug, fragmentation, and a penetrator.

[@michiganengineer8621]

Very much what I was thinking for a "Generation 2" version

[@garettthomas1350]

Tungsten will shatter at high pressures but it’s great at high temp 316stainless or hss (high speed steel) will perforate better

[@garettthomas1350]

When I break a tungsten electrode at work it splinters like wood sort of. so it would be a triple threat with just the aluminum jacket I think

[@toddabbott781]

Does it harden, temper, and anneal similar to steel?

[@voidnull9609]

nice to hear of another guy from Wales watching your channel.

[@freedomfighters1236]

Zamn doing good my guy love all of you guys I hope all the fams are doing great

[@kilgoar]

i was gonna say man, that looks like a hollow point more than an insane penetrator

[@deylond9687]

I noticed your tattoo sleeves changing design and thats when i realized it was just a fake sleeve, i just wondering why use them? Sick designs on then though!

[@effingdingus]

Rip hope rehab was good man stay strong

[@exmortemx1492]

Great design.

[@MicroMidas]

Now THAT'S a armor-piercing slug! Almost like a mini RPG in some ways^^

[@YungEagle3k]

these are insanely impressive

[@michaelvanwijk3785]

Damn dude! Well done on making these!

[@FangBlah]

Would love to see what something like that would do in a handgun round like 10mm or 44 mag for bear defense.

[@OGsDangerShow]

It’s way too big to fit in a 10mm or 44 mag. 😂

[@FangBlah]

@@OGsDangerShow You have removed all doubt.

[@luisortiz-dq9gv]

Amazing.! Absolutely phenomenal.!

[@alexandrealain]

Officer Greg holding onto a warm mushroom tip lol

[@AZAce1064]

I think those are the best slugs I have seen👍

[@nukeboy7633]

the British solid shot in action

[@cellofellow4101]

Awesome slugs! I image the force it transfers is crazy even when it doesn't penetrate. slwg da iawn!

[@edwoden3568]

One of the Best i've seen on this channel, and that's much to say...

[@TheOlderSoldier]

I think it’s bimetallic design almost works like a deadblow hammer

[@TheOlderSoldier]

Based on that steel plate hit

[@NinjaForHire]

That core proved to be a projectile inside of a projectile. The slug almost guaranteed penetration which you see in a lot of encased projectiles just proves this is a highly efficient way to create an almost unstoppable piercing object, there should be a word for that.

[@davrambashere4421]

Lots of suggestions, here is mine. I have been shooting for about 69 years, including shooting a hole in ½" carbon steel with an ordinary soft nose bullet. Weatherby’s old catalog from 1960 had some information about that, I do not know if they are still showing that. I agree that tungsten would be good, very high density and reasonably hard. You could make the slugs about 0.64 X the diameter of the steel slug and have the same weight (keeping the length the same). Tungsten carbide is almost as hard as diamond, but its density is a little lower than pure tungsten. I doubt that the aluminium cup is important, unless you can make it stay attached to the core to provide expansion. I suggest you just make plastic sabots - perhaps PTFE, as suggested below, although I think Remington and others may have used something else, maybe Nylon. Nylon 6/6 would probably be good, and you can buy it already filled with the solid lubricant, molybdenum disulfide, and other additives. For maximum velocity, nothing beats a sabot - while giving us the aerodynamic advantage of a sub-caliber bullet. One more point about loading, I noticed that you selected a type and quantity of powder to get the desired results - which some people overlook when using sabots. Think of the fun we can have!

[@jeannotalberty8256]

Oh man those are amazing rounds I'm so impressed great

[@geoffreyraleigh1674]

Best one yet! Cheers!

[@mattlars89]

These rounds pack a frickin punch, considering they are on the light end of the scale. I reckon Tungsten is going to be heavier and harder than the soft steel core. Cannot wait to see the next version of this.

[@ianwilsonssilverstack1981]

I love Jeff's crazy laugh

[@curtisscott02]

That’s a lot of fun to watch. Thanks Kyle for one whale of a slug!! Pun intended. I will buy a dozen boxes of those Kyle! Patent those and make yourself some cash!

[@K.D.Fischer_HEPHY]

Gsus, these bad boys are tankbusters. Scary.

[@necro12rock]

Awesome work, now there is a chance to fight back all the grisly bears that come after to attack unprovoked

[@ealep0314]

Yesss people with simple shoulder-fired arms discover the might of APCR! Tank boys know what I’m talking about 😎

[@blindfredy6128]

Well done Kyle.

[@RCScaleAirplanes]

Another great day at the shooting range 👌🏼 😊

[@stoltzld80]

Being a Machinist and reloaded....I'm gonna have to spin some of these up!

[@RobsonVotri]

Wooow! It worked like an AP round, where casing is left behind and the hardened penetrator goes through armor

[@davidelliott5843]

That slug would be the ultimate car killer outside mil spec 50 Cals.

[@winebynature1633]

Welldone Kyle !!!

[@tim7052]

I think Kyle's going to have some major bullet manufacturers come knocking on his door!! And if so: Good on ya, mate!! Well done!! 👍

[@Yournamehere9160]

"Shumai" from Wales. Thanks for the mention

[@brandonbuchanan8034]

Now that's a round even I would buy!

[@stevesurfaro]

God bless Kyle Watkins & Tao. I'm in Phoenix AZ, in Public Safety & this might be the round that will give the #fentanyl #Cartels pause. TX can outfit DPS & finally have an answer to the Cartel widespread 50-cal deployment. When you have time, or after you've got the refit design stabilized, please DM w my thanks 🙏. Stay safe, people and remember, you have the right to protect yourself & loved ones.

[@alexmckeown123]

I'd love to see a three stage version, the aluminium shell, a inner steel shell then the core, each layer the round hits would allow the next shell to slide, possibly going through more and maybe even further. The core could also be screw shaped so as the core is slipped from 2 shells it'd hopefully fly like an arrow driving itself Into someone or something like a screw would

[@Scott.E.H]

Man it's like a combination hollow point and penetrator. The mushrooming is super impressive.

[@cruzin6123]

Kyle, start manufacturing them! I think you will make a lot of money!

[@timothyevans4323]

A tungsten core would be gnarly!

[@etnwhvac]

Kind of reminded me of those Tank busters that penetrate the tank plating and then explode inside!! This is a 2 stage Slug!!

[@chrisx2953]

Whoever that guy in the glasses is would get canceled so hard in today’s day and age, I love it stay you and keep it up with them jokes! 😂 dude is funny af

[@Biffo1262]

Absolutely lethal. No-one hit in the body mass is going to survive the damage that will do.

[@Emfn1212]

That head shot was insane. This slug is no joke

[@aronrhys8679]

Big shout out From the southwales valleys

[@kenlandon7803]

Way to go Kyle!

[@quinnzykir]

I need these in a post apocalyptic/zombie game

[@Demonio_911]

Very informative and funny! ... Thanks 😂😂

[@taofledermaus]

Glad you enjoyed it!

[@dariugrinov9472]

WOW these are like APCR tank projectiles

[@crixusinhowolf4467]

i am a bit lost in the mechanics of the slug .....but the end result is freakin amazing!!!!

[@garygranato9164]

extremely impressive

[@Seren2010kinder]

Well done boy bach 🏴󠁧󠁢󠁷󠁬󠁳󠁿

[@prdprdprdprdprdel]

I'd love to see one that's three layers.. The same it's right now, but with a thin sharp tungsten penetrator that can also detach as a core..