Supersonic Projectiles with internal FINS? You Make it, We MACH it!

This video was filmed safely at a proper shooting range.
Many viewers have wondered if having internal fins would help stabilize a projectile. There are some rocket designs that use this principle, in fact. But will it have an effect at over Mach 1.2? Evan stepped up and sent in his design. LOTS of woulda-coulda-shoulda stuff for you to chew on here.
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We use a Chronos 1.4 high speed camera

[@taofledermaus]

Thank you Evan! This was a fun test. Thank you everyone for taking a second to rate the video!

[@TheOlsonOutfit]

Thumbs up, for sure.

[@chilling_at_pontiff]

-?-

[@SCComega]

Any chance we could see this from a shotgun without rifling? If it's open all the way through, might it not straight-fin stabilize?

[@faustojavierdarosa1119]

Can you try to shoot curved/bend shotgun slugs to see if they can miss the target you're aiming at?

[@briandesilvia6436]

TAOFLEDERMAUS could you try this one again with a shot card to see if its stable on its own, aslo with and without rifleing

[@pltyes21]

Editing: 10/10 Slow Mo: 10/10 Content: 10/10 Jeff's singing. 11/10 Keep killing it brother. God Bless

[@ders972]

Yess, love this comment

[@jbolo5378]

OG 0/10 😔

[@JenniferinIllinois]

pltyes21 Jeff's singing goes to 11.

[@EdwinSarkissian]

Uuuuuu make it and veeeeee shooottttt ittttt...

[@StefsEngineering]

He may not have a 50 cal in his video's, but the singing compensates for that with ease

[@bambiejacksonreese3015]

Shoot Edwin Sarkissian car next time TFM science needs to know... just ask if you can borrow it

[@zacharyahtaylor464]

I’m readyyyy

[@kasnitch]

when are you getting a Howitzer and a mountain to shoot it at ?

[@diegobrito2034]

Edwin Sarkissian 😂😂😂😂

[@Leetgrain]

Lead Plate & The Ballistic Booger, sounds like a 90's cartoon, I dig it!

[@TheOlsonOutfit]

I'm really looking forward to the rocket slugs.

[@thealtrone1]

leif52pickup what? Really?

[@Sherrodja]

A steel washer between the slug and wadding should give it a clean release when it exits the barrel... Great video guys.

[@Aussie50]

I have some of that extrusion, its out of an old photocopier, good to see it go supersonic :D

[@taofledermaus]

Ah, I wasn't sure if they came out of a printer, vacuum cleaner, or what! lol

[@Aussie50]

It could be a roller from a cleaner head, its an industry standard profile, I have just seen it myself in copiers and printers, often larger in diameter.

[@gregoryadkins2213]

Your intro,should be nominated for an Academy Award,Best introduction to a educational video.

[@kenhelmers2603]

The oddest things seem to work fairly well! Thanks guys!

[@Dread_Not]

Great simple content answering aerodynamic questions and allowing fans to be a part of the show. I'm so happy that this channel exists!

[@pipeepapofckgug3633]

I love that you always give alternative measurements :)

[@kalixtshawxo]

Three things you have to shoot to make everyone happy; Lead plate Ballistic booger (or bear) Clay block (face/head)

[@stinkyfungus]

Roger Lareau Ditch melons

[@tomsikes9064]

Tao fleder team! Outstanding demonstration! I thought because of the rubber coating it would have been less accurate. Looks like a great H.D.R. short range and dumps energy pretty quickly. I Like it, I luv it, I want more of it!!

[@Max-zr7hr]

Always love watching you guys shoot stuff

[@nicolas0873]

Thank you for the metric units conversion!

[@peabow1031]

That was a fun slug and gives you a insight of the force inside the gun while firing thanks again guys another interesting vid.

[@justinh6709]

Great video guys!!! I love Everything you do. Keep it up!

[@jbolo5378]

These are my favorite videos. I love this series

[@heywardmorgan7699]

Glad to see you guys, or y'all as we say it on the south eastern coast, are still doing the you make it we shoot it segments. Keep up the good work guys.

[@Dsdcain]

Made a bigger dent in the lead plate than I thought it would. Pretty cool how the lead was forced into the projectile. Thanks for the videos.

[@SurvivalRussia]

I'm glad to see you are still at the "New Range" :) It's a much more pleasant view. It would be interesting to see how those Holy Rollers would perform on their own. I would think the plastic wad aided the slug in becoming unstable during flight. It looked like it :)

[@taofledermaus]

Thanks Lars. This is about 100 feet from where we normally shoot. It's just a lot shorter range. The shade sure makes a bit difference though

[@DavidArnold67]

OMG. So excited for the rocket slug!!!

[@georgemannsr8708]

It knocked a fart out of the ballistic Booger GREAT JOB Jeff and Danny (as usual)

[@SarntRexxo]

Prolly my favorite channel to watch on break, great content, great, people and good jokes. Always entertaining. Keep it up guys 👌

[@taofledermaus]

thank you!

[@KirkHermary]

Great video guys! Keep up the good work!

[@CommodoreFan64]

I would not want this as my only ammo, but still would be okay in a pinch I guess. Also very excited about the rocket slugs. Thanks again for the awesome video! 👍

[@teaqeri]

Congrats on 1000th vid your videos are great keep em up we love them

[@keithjenkins7918]

Another great video... Great jobs guys!

[@darrellabney3629]

You guys always make great content I enjoy every one of your videos keep up the great work guys

[@taofledermaus]

thanks Darrell!

[@buffalosoutdoors]

Dead eye Danny!

[@planescaped]

"A Star Trek Wars X-Wing Tie Fighter" Uh oh... I can hear them coming...

[@Fryman239]

*keyboard taps furiously*

[@fliegeesser4665]

Resistance is futile!

[@theoldkhajiit5304]

Another interesting design. Think it could use more testing though. Thanks for the video guys!

[@jackedup8790]

I had no idea so many enginerds watched this channel. " you should have done this or that" I think you guys both did a great job thanks for the entertainment.

[@taofledermaus]

lol thanks!

[@probegt75]

Danny's skull bracelet is badass...

[@neckstumping]

As usual..... great stuff. Thanks guys.

[@okiefamily9244]

Best channel on KZbin!!! You guys are fun and clean! My boys and I love your videos!

[@dannyakatrikerred7381]

Okie Family Tell your Boys that Danny said "Hi" ✋🏻. 🇺🇸😎

[@okiefamily9244]

Danny AKA Triker Red, yes sir! I will!

[@PsychoticBovine]

your singing needs MORE COWBELL!

[@Kratos_God_of_50_BMG]

PsychoticBovine I too have a fever, and the only prescription is ______

[@saartal4524]

Always surprising result. Great!!! I think it calls for a re-test...

[@thedevildick1]

Awesome vid Jeff and Danny!

[@kc8wzm]

I see we even got the "OG Finger Wiggle" (tm). I like the spot where you guys are shooting from. Looks like it's in some kind of shade.

[@Tremox5]

that intro caught me off guard 10/10

[@mensb1936]

would never have imagined this projectile, neat as heck

[@jamesmanning1528]

Good job Jeff, much love from the UK.

[@crispy-k]

Great vid as always ;) Keep it up!

[@RazorSkinned86]

"Star Trek War X-wing Tie Fighter" - lol, triggered!

[@bobdefalco]

STAY ON TARGET

[@jjohnston94]

LOOSEN UP!

[@MrShadowpanther3]

It didn't go in... it just impacted on the surface...

[@theroller5673]

That is one sweet as bracelet Danny! Great shooting as always!

[@TheSuburban15]

Although usually not fan of man jewelry, I agree.

[@0xBADFECE5]

I loved the condescendingly accurate metric conversion of "gallon jug of water" at 4:15 XD

[@hilltop4847]

I'M READY!!!

[@bubu02]

I love your Videos. Pls keep going :) Greetings from Germany

[@KUDJU]

Jeff im heŕe only for the way you sing the intro

[@elesjuan]

I like the original you make it song he sang better, but I still LOL at this one!

[@NvrchFotia]

It needs a pointymathingy like jets have to get the airy stuff in the holes.

[@seburo7024]

SR-71 ramjet style!

[@digitaldarwinism]

The booger, lead plate, and water jugs are my 3 favorite targets. Danny made me think of an early weird al song!

[@esdrasUrbina]

Exotic slugs very nice. Great video

[@samkite8028]

Great vid jeff! Keep it up

[@Rincypoopoo]

Great ! I hope we get a re test with a different wad set up. Be interesting to see how they fair on their own with no plastic tail...

[@mynameisntleo]

I think these slugs have more potential. If Evan would be kind enough to produce a couple more, I think reinforcing the wadding to make sure it stays separate would be a fun, interesting test to see. I don't know what you would load between the slug and wadding (maybe that shot disc thing Danny mentioned?) but I'd love to see round 2 with these "holie rollers". Great job on the video as always!

[@Rascal77s]

Lmao my dog started howling when you were singing at the start of the video.

[@devilsmessanger]

singing was so good,liked in first few seconds !

[@casey197930]

"Nuthin wrong with me hat, hand me dat tape over dare." Love it!

[@michaelrowell3696]

It's always nice to watch Danny shoot, i miss that guy.

[@edifyguy]

It's become pretty clear to me from watching your videos for awhile that you really need a nitro card (or 2 or 3) behind a hollow projectile if you want it to reliably separate from the wad. In this case, it might be worth seeing how you could keep the ward attached, however. Pool of hot glue, then add projectile?

[@HarperChisari]

Nice shot kid that was one in a million

[@joshuahandy9454]

Love your vids Jeff!

[@bryanmorrow7156]

Hahaha I love it, your comments are freaking great!!! The commentary you say, just make me laugh. I love it so much!!!

[@taofledermaus]

thanks Bryan!

[@bryanmorrow7156]

TAOFLEDERMAUS your so very welcome

[@merlinmagnus873]

Copier tech here. Those are out of the imaging section of a copier. The upper transfer belt roller to be precise.

[@skepticalbadger]

Nice! Thank you. I always like to know what widgets are.

[@ChystAtWork]

Thank you very much for translating your measurements into the rest of the world's units of measurement :D

[@pepehernandez35]

Good loads and pretty accuracy rounds for it.

[@texasdeeslinglead2401]

As a Pentecostal , I approve your application for the name , 'Holy Roller'.

[@markroper9269]

Great video!

[@20alphabet]

Danny! This guy is truly worthy of legend status.

[@dannyakatrikerred7381]

20alphabet Thanks 👍🏻. I am a Legend in my own mind already 😂. 🇺🇸😎

[@fenborggaming]

Danny is a Jedi! But what does that make the OG I wonder?

[@davida267]

It would be interesting to see how they do with a shot card, maybe the wadding was causing the unstable flight?

[@felixcontreras82]

Great video

[@JW--dc8ri]

Beautiful singing

[@collinmartin1286]

Nice shade!

[@The_Warrior526]

"And now a jug of water!" *BAM* "HEY, I WAS GOING TO DRINK THAT!!!"

[@13ECHO20]

"I got a booger on my finger." lol

[@davidm106]

I see a part two on this one. Don't know if the wadding was helping or hindering. Need something to facilitate separation. Good video!

[@unknownwilford3532]

BALLISTIC BOOGER! lol love it

[@uspavacka]

Give these the plastic "tail" just like for example Brenneke slugs have and this could a be a good slug, great video as always.

[@steveeab2364]

You've got to be narrating for the Garage 54 Eng channel. I'd recognize that lovely singing voice anywhere

[@aardvarkbran]

Don't worry Taoflederfolks, that tree in the background is at least 3 miles away.

[@SlingsAxes]

Danny has a cool looking bracelet.

[@andre_dabs9492]

Love ur videos

[@sski]

Rocket Slugs!!? Awesome! Can't wait.

[@pepperspray7386]

The youtube union must be at work, shade was added.

[@Benny_n_thejets]

I fucking love this channel.

[@defusedplanet]

Yo the shade was nice

[@tacman1845]

I think that round is on the right track. Maybe round off the nose and slant the slots for spin rotation.

[@niq872]

love the intro song

[@asgkllngfxxhkkvxdhkkbhjllnvcg]

This is cool!

[@hallofo8107]

You guys are awesome! However, I don't know how I feel about someone other than The OG fingering random holes. I can't wait to see the upcoming Gyro-Rocket-Shot slug test!

[@stevenmike1878]

can you try industrial diamonds? you need about 150 carats to make a good wax slug. they prolly way too small to be affective shot. unless you had to dispatch a mouse or snake with diamond shot. but if you know where to look you can get them at a good price. on ebay i see a 15 carot Natural Black Rough Diamond Bead necklaces for $3.25 you need about 141.7475 carats to make on ounce. so if hunt real real good you could get a diamond wax slug for around 35$. lol you can even play a jame bond song like diamonds are forever. a lil ridiculous but thats why i love you guys. ridiculous n entertaining is what you guys do best.

[@redneckgenius]

If Danny could give a recoil report like Greg often does, that would be helpful. Danny does when it is stout, but on lighter ones generally not.

[@simonrival1613]

If I was in a better place financially I'd be a patron for you for sure.

[@Milfisto]

Thumbs up for the metric inserts! 👍

[@accidentalheadclunkers8517]

That hat must never die

[@skavossis5377]

I love the new channel watermark.

[@fliegeesser4665]

I dont believe that there was any appreciable air flowing through the internal "fins" . I believe they are simply a wadd-cutter style with internal features. The reason they are stable is the rifling, and the wad-cutter shape. As for the shot cup extruding into the cavities of the projectile, perhaps a buffer disk in the shot cup first then the weird slug. If the shot cup sticks as I see it doing, it will really throw off the flight. Great work. But the loads need a few adjustments and they may fly better... I cant wait for the next episode of Taofledermaus to pop up on my desk-top. By the way, What is the origin / meaning of "Taofledermaus" ????

[@john-paulsilke893]

Michael G I’m with Jeff in believing it’s a happy accident that the wads got stuck and created stability. In other words the slugs suck and the loading wasn’t very good but the combo was amazing, (understandable on all accounts considering the amazing happenstance that so often happens on this channel). The channel name means way of the bat, perhaps Jeff is a Batman fan or his real name is Bruce Wayne.

[@fliegeesser4665]

I dont believe the wads getting stuck caused stability. Just the opposite, they caused the wobble when they invoked a drag in an asymmetrical way. If they had released completely, they would all have flown true. On the several shots where they seemed to fly right and the wad appeared to be fused to the projectile, it might have been the "drafting" that kept the two parts together and not an actual connection between the two. But none the less, with a few changes to the way these things are set-up with shot cards, or other buffers and such, may make them all fly like wad cutters in a rifled barrel.. Once they are stable in a riffled barrel, it would be interesting to see how they fly in a cylinder bore... Regards Mike

[@Islacrusez]

I believe these should be fired strictly from a smoothbore, as the fins appear to be axially aligned rather than to any sort of spiral. If this is the case, imparting spin is actually counterproductive. Not that I think it would perform better, it doesn't look very aerodynamic.

[@fliegeesser4665]

Islacrusez A wad cutter dont look areodynamic, but they do fly straight with spin. One step at a time. Get the wads to not bind with the projectile, then try spin, or no spin.

[@fliegeesser4665]

Islacrusez A wad cutter dont look areodynamic, but they do fly straight with spin. One step at a time. Get the wads to not bind with the projectile, then try spin, or no spin.

[@ianmacfarlane1241]

[Caveat] I know nothing about ammunition or ballistics. I'm surprised that it worked at all - I'd have thought that it would have needed a shot card to create a gas seal, because it was hollowed out, and I'm also surprised that the rubber sleeve didn't cause any adverse effects. I thought that it might 'grip' the barrel. It just goes to show how little I know, but a lot of these slugs work counterintuitively IMHO. Very interesting design & as always a great video.