350 Legend vs 450 Bushmaster: INSANE Difference On Steel

In today's video, we will be comparing the performance of the 350 Legend and the 450 Bushmaster on mild steel. The results were definitely not what I was expecting. Testing was setup at 50 yards using A529 gr 55 mild steel. Thanks for watching!
Testing: 2:53
*These tests are meant for entertainment and educational purposes only. Shooting steel can be dangerous, so do not try any of these tests at home!
#midwayusa

[@nunyabisness4300]

“But anyway” not “anyways” like chewing with your mouth open. This makes your videos difficult to watch. Great otherwises. Lol.

[@bananaballistics]

I didn’t realize, but I’ll have to work on it. You may not be able to make it through the next couple videos though lol.

[@WayStedYou]

some could say its nunya bisness

[@redfaux74]

Nonyun - If you can't handle this level of scientific specificity without also requiring us to be grammar ninjas.... 🤔 well.... then maybe you better go babysit your grammar instead of watching real men break a lot more than English etiquette. Maybe this isn't for you.

[@lucasvaughn629]

bro no one cares

[@davidunderwood3605]

Like really man/women or other, who cares. You probably have not so pleasing habits too.

[@sbsmeltz1]

I took a 475 pound black bear with a 450 bushmaster with the exact hornady cartridge you tested. The bullet passed the whole way through the bear and the bear only made it 15 yards. The shot was 100 + yards

[@Wooderson5811]

That’s strange I shot plenty of white tails with the .450 and all the energy dissipated into the body of the deer. Never seen an exit wound. That’s preferred rather than punching holes through animals. That’s the reason why hollow points are preferred rather than full metal jackets or armor piercing rounds. I’m glad you made an ethical kill on the bear and it didn’t suffer for too long. Good on you man.

[@billaheimer3147]

Hit any bone?

[@spcpitts]

Was it a stuffed animal or a baby bear?

[@Robcalitrek1]

Shot a lot of hogs with .450bm and don’t see a lot pass through. Must have been a really skinny bear

[@korndawggy1801]

​@Wooderson5811 seen plenty of deer dropped with arrows that pass all the way through. Shooting almost anything is about shot placement than plugging up a hole with lead.

[@EC-mc7vg]

Been shooting hogs here in Texas for a couple of years with 350 Legend 150 grain Winchester Deer Season XP ammo and it has been very effective, probably my favorite hog cartridge. Have used 450 Bushmaster 250 grain Hornady Black with the FTX bullet on a few hogs, while it may not have penetrated 1/4" mild steel it really does a number on flesh and bone, busts a hog up pretty good and has dropped them right there on the few I have shot. Looking forward to AR parts for the 400 Legend, should be a great hog round and good balance between 350 Legend and 450 Bushmaster. Thanks for the video.

[@bananaballistics]

Glad to hear they are both effective on hogs. I agree that the 400 Legend is probably a good happy medium so I may have to look into getting one.

[@jeepinintexas6215]

​@@bananaballistics good thing deer aren't made out of 1/4" steel I guess. Shot one with a 450 Bushmaster and it plowed right threw it and you could see lung tissue and blood splatter against the tree behind it. Left a hole through both sides the size of a half dollar in diameter. Haven't had the chance to blast a hog using 450 BM yet. It's too much for deer though, will be using 300 Blackout as my caliber of choice for Bambi.

[@3gunshooter60]

You definitely need to do a comparison between. 400 legend and .350 legend. I'd say it would do better than the. 450 BM as well. 😮

[@hickboyjusthick698]

Can’t wait to see a 350 legend vs. 400 legend.

[@willo7734]

Definitely. The Turkey’s Opinion really did a great job showing what the 400 Legend can do.

[@hickboyjusthick698]

@@willo7734 I do love The Turkeys Opinion. The steel shooting videos here, have definitely made me rethink the penetrating power of some of the calibers I have.

[@bananaballistics]

The 400 Legend has me intrigued. I’ll have to see what I can do

[@nathanhatcher7096]

Yes sir! I was someone that knock down the 350 legend thinking it wasn't going to be a gud deer round holy cow was I wrong! I'm hooked now and all for the 400 legend because I would like a little more range out to 300 yard, from what I'm gathering the 400 legend is going to scratch that itch!

[@Shitbird3249]

How about the .350 pretty good vs the .400 not too shabby

[@alanlechleidner6951]

Try welding angle iron to your sled. Two pieces on the upright sides creating a "slot" to slide your plates in from the top

[@Threefiftylegend]

Yea I was about to say that also. All he would need is like a inch so if the plate bends it can still come out .. 🎉🎉🎉

[@ratedredneck96]

The reason why the 450bm didnt go through is because it dumped every bit of its energy into the target very efficiently. Small and fast defeats armor but doesnt necessarily win in an energy dump contest. If you could put a pressure gauge behind the steel to measure impact psi that 450 would be much higher. Also in ballistics gel or in a devastation test on melons the 450bm would do more explosive damage and cause more cavitation damage.

[@user-eg8hb8xt3j]

“Energy dump “ does nothing on game . Punching holes through vitals kills . Every gut shot animal or shoulder shot with a Berger type garbage bullet would magically drop game . All that energy “ dumped “ into the animal but it walks away and dies a miserable death

[@ratedredneck96]

@@user-eg8hb8xt3j wrong, dumping energy punches through bone. Poking holes is not at all the only thing you need. If that was the case 22lr could kill a deer no problem. You need that energy dump to bust through the shoulder and expand that bullet as best as it can. Lack of energy causes low expansion means the bullet hole could seal up which is why many people lose bloodtrails.

[@Landon_Andel21]

@@user-eg8hb8xt3j I agree poking a hole is no where close to exploding and expanding in wild game i would take the 450 bushmaster any day over the 350 legend

[@skippyskip9959]

@@user-eg8hb8xt3j your comment shows a very real lack of hunting knowledge

[@grantdubridge7995]

And yet a basic 30.06 is 30% more energy at 100 yards.

[@jamesd4013]

I really enjoy your straight-forward no-frills (other than the quick-witted jokes) testing. This is the Project Farm of ballistics testing!

[@possumpatrol45]

Nice informative video, I found the results surprising. I'd love to see a test of those Buffalo Bore hardcast loads in .450!

[@willo7734]

Really interesting result. The main factor may be that the larger diameter of the 450 legend spread out the energy over a larger area and was dissipated better by the steel. Nice looking sled btw.

[@bananaballistics]

That is true and I did not mention that part of it. I appreciate it!

[@millermanhal]

I agree. Great point. Both do a great job with 🦌. Wouldn't want ti be on receiving end of either.

[@mythos000000025]

I also think the plastic tip/insert in the bullet keeps it from penetrating as well, it deforms and slows the bullet down as the projectile also expands, making it harder to go through the steel. An fmj would probably make it through in .450 legend, also a solid copper or brass bullet(while lighter and thusly faster) would I'm sure do great. I don't know if anyone loads for this caliber but Lehigh defense bullets....oh yes please

[@lombasto]

Yeah, this is a question of energy density. This was a great video though the author missed this point. I'm debating these two cartridges for an AR build and it seems the 350 Legend is the best balance so far.

[@ericblair844]

The 450 also had a massive hollow point compared to the 350

[@darrenstettner5381]

Love you banana. I watch so many of your videos. Whenever I’m like “I wonder how such and such caliber compares with some other one”, you always have a video waiting for me.

[@richardkelly897]

I like the capture system addition but I think your v1 set up had the right idea just needed harder steel that wouldn’t bend with the impact. You’re correct that a clamp system is needed to keep it in place.

[@dj3114]

Thanks for the video - a result I definitely didn't expect.

[@alamomonkey]

Great as always stuff sir! Have a content suggestion/request… how much penetration difference is there between “low recoil” vs. standard rounds? I use low recoil in my conceal carry (.380, I know I know…) to “reduce” through-penetration risk, but always curious if it was a significant difference. Keep up the great work!

[@markchapman2585]

My favorite gun Channel. Thanks for the great content 👍. Cheers from Canada 🍻

[@rockymountainhomestead]

I would have never expected your face to match that voice. Great content, deep voice

[@bradbo3]

350 legend is quite impressive. I bought a rifle in the caliber a few years ago...and havent taken a deer with it yet...but my son has. It does just a well as my old 30-30 or 308.

[@robertflint4115]

Good informative video. Some radio station out there is calling for you (DJ voice). Rock on 🤘😎

[@donl4914]

No debate. I bought my 350 Legend already from BCA and absolutely Love it. Added a scope on this upper and got MOA at 100. I am very impressed with this cartridge and upper receiver combo. The BCA if anyone is interested is a 20' heavy barrel stainless nonfluted setup at a reasonable price. I added a Rise Blitz trigger group to my lower and got an insane light trigger with almost no travel. My only problem is finding a Hog Hunt to go on...lol. The ammo I sighted in with is Federal Non Typical 180 grain. .962 group 3 shot placement.

[@TopNoTchVSOP]

What is the maximum effective range of that 350legend?

[@donl4914]

@@TopNoTchVSOP About the same as a 30-30. It's a heavy hitter, not a long-range precision rifle. All though, WhoTeeWho did put the 350 Legend on steel at 1000 yards. I won't be pushing this that far. I expect the hunts all to be @ 200 yards or less. WTW has the ballistic charts for this too. Check his channel out.

[@blayzatron1]

There is a big difference between hunting flesh and bone, versus armored combatants. Different tools for different jobs. Great video, as always. Yeah, the magnets just aren't strong enough for that heavy of an impact..

[@thefanboy8119]

heyy i love your vids, great job!

[@deathsicon]

for your sled rig, i would use catch hooks similar to what i saw on the bottom, up top as well, only rely on magnets to hold it in place for the shot and let the hooks keep it from going flying, it'll make it a slight pain to load a plate from the side, but it beats not having to chase the plate after every shot

[@redneckgenius]

The same projectile moving at different speeds absolutely has different terminal effects. Also, as you noted, 2100 FPS is not the min for penetrating the mild steel. The projectile has a lot to do with that. Steel shotgun slugs (See Taufledermaus) do not move that fast but will punch through.

[@austinhowze6280]

Compared something heavy and hard is why

[@harrymetalhead3776]

Love your channel !

[@theronroberts5573]

On the other hand. Have you ever thought of getting into radio? You've got the voice for it, no doubt.

[@wilemelliott]

the other issue is bullet construction. A solid copper slug instead of a poly-tipped hollowpoint might work a bit better

[@Izzy91313]

Thanks Ray Ramono!

[@Commonsensepreps]

I wonder if you could wrap the magnets in tire innertube once or twice to give it some vibration protection?

[@finaltouchautodetailingllc]

What about adding a sleve that you could slide the plate down into,like the little lip at the bottom but 4 to 6 inches tall with some metal on the side so it cant slide left/right

[@davidunderwood3605]

Change the bullet type and you will probably get far different results. Fmj's would possibly go a lot further. Two sliding steel wedge bars, one at the top and one at the bottom the full length horizontal might work to hold those plates in place. Only needs to use a half inch or so top and bottom across the face to hold the plates

[@pitchforkpeasant6219]

Solid copper works. 220 grain Lehigh for 450 b using lil gun powder

[@blakebryan8450]

The 450 is a wider projectile than the 350 so the impact force is distributed over a larger area. Even if they had the exact same energy, the smaller diameter project will puncture easier than the wider larger diameter project. Narrower longer projectiles puncture. Shorter & wider projectiles punch and lose energy as the impact is distributed.

[@Physics072]

You nailed it. I have a .17 call that shoots 3300 fps and it can put a hole in that steel the size of a BB gun but I don't hunt deer with it. 450 Bush will dump all the energy in the game. Who cares about plates deer are not made of steel plates.

[@MrKingArthurhk]

Thank you, Raymond.

[@boywonderrr71]

300 Blackout & this round not going through mild steel is driving me bananas!

[@jahbeanz1943]

GREAT video!!! Where can I get that Velocity Measure Device?

[@J-eP88]

First thing that popped in my k-noggin when you said you were going to try neo mags was that they were going to shatter. The setup that you have been developing to hold the plates has been as enjoyable as the rounds you have been testing/comparing. I am picturing some slotted "L" brackets attached to adjustable welding lockdowns to cinch the plates in place. They may pop open from the impact but as long as you don't hit them you should be ok. Actually popping open may be preferred since the lockdowns would not have to take the full force of trying to keep the plate in place and the energy would be disapated with the plates flying free.

[@marty4645]

Ok my friend I liked the video but do you have plans for the sled?

[@M_Pashby]

The 350L has been awesome for taking Michigan whitetails. It hits hard, especially inside 100 yds. Very capable round yet mild mannered enough for my younger hunters to use. Savage 110

[@John-wo5bp]

Way the rifle barrel wobbled was like a rubber gun lol great content dude greetings from uk 👍🦊🐾🇬🇧🇺🇲

[@sealclubber1383]

Not to mix up your whole plate form, but you should start doing the same tests but at farther distances. You and Colion Noir are the best gun channels on YT

[@bananaballistics]

I agree. I have been trying to figure out how to get further distances on the property I shoot at. I really appreciate it!

[@spoonyfart]

Great info from Ray Romano.

[@hickboyjusthick698]

Hello mister B3. It is good to meet you.

[@finaltouchautodetailingllc]

Love your video's and witty sarcasm

[@toddklopfenstein8271]

It might benefit to consider energy per square inch. Can be calculated by determining with the bullet diameter. Can probably establish a correlation on minimum requirement to penetrate.

[@jackansi]

I can't believe there are people out there that didn't know magnets in that area would get absolutely annihilated. I can't imagine being that far out of touch with the real world...

[@brent5832]

They’re probably kids

[@matthilmer9094]

Lol, this guy! Somewhere out there, Raymond and Robert are trying to find their long lost brother.

[@rquest3059]

You should try a top clamp to hold the plate, similar to a top break pistol and a wedge at the bottom.

[@bananaballistics]

That’s a good idea. I may look into a vise as a clamp as others have mentioned

[@jessiesaylor3197]

Would like to see you do the Hornady 7.62x39 subsonic 255 grain on those steel plates

[@itsamk18-ish]

What if you loaded a weak .223 round to hit the plate just under 2100fps and see if the smaller diameter focuses the energy more and allows it to penetrate.

[@jcorbo7518]

LOVE the V3! Did you weld it yourself? How was it done? Saw the first shot. Nvm

[@bananaballistics]

Yes, all the pieces were plasma cut and I welded everything together

[@rjoetting7594]

I have to say punching holes in steel is no indication of performance on game. As a matter of fact it's quite possible that the exact opposite is possible. Too much penetration might just punch small holes in the animal with no expansion. Do the same test with ballistic jell you might be more impressed by the 450

[@russellwilson1906]

Exactly what I was thinking. It appears to me the 450 did exactly as intended, thats why its a such a nasty hunting cartridge at respective distances

[@Off-target-xy6bx]

I hope to try the ar in 350L this deer season. I think it should be a good close range set up for whitetail deer 🦌 it should put meat in the freezer seeing what it done to that plate. 2A💪

[@Zenergist]

Results are not surprising . A narrower bullet with less surface area will have better piercing capabilities due to higher impact pressure. However, penetration comes at the expense of energy transfer efficiency. The 458, being wider, is much better at transferring energy , so it will do better against softer targets

[@johngibson3694]

How about a comparison of 444 marlin vs. 4570. Just thought it would be neat to see what the difference is. Thank you. John Gibson.

[@t-bfr45-70]

444 walks on most "factory" loads for 45-70 but 450 marlin and hot loads for 45-70 can match velocity with a hundred grain heavier bullets.

[@redfaux74]

Good video! ❤ Keep up the interesting ballistics work. The fatter the tip the harder it is to make it.... Nevermind. Let's keep this channel 100% PG. But I think there is some info in that fact.

[@bananaballistics]

Lol, I get where you’re going. I really appreciate it!

[@charlesmckinley29]

Not surprising at all, lower velocity plus a larger frontal area prevents penetrating the steel. A 22 magnum penetrates more layers of kevlar than a 44 magnum but which one do you think does more damage to the tissue behind the Kevlar?

[@brandonnovotny1143]

Try the magnet fishing magnets that are encased in stell. May be less likely to break. And plenty strong to magnetize the lead sled.

[@Physics072]

Shooting Deer not the same as steel. Used both and if you want to down one like a hammer use the 450 bushmaster. If you are weaker or recoil shy then go with the toned down 350 Legend.

[@masonluttrell6096]

Add a C channel on either side of the sled, be able to slide the steel in from the top?

[@HB-kp6rl]

I didnt think the 350 had that kinda energy. Im pretty impressed

[@SomeGuy-vo7we]

In reality it really doesn't. .350 pushes 1,800lbs of energy vs .450 pushing 2,700lbs of energy. Smaller diameter bullets penetrate hard objects easier with less energy, so it's kind of a rigged test. Imagine a stretched sheet of canvas and how easily a needle pokes through vs a bowling ball thrown at it probably wouldn't go through.

[@russellkeeling4387]

Try this with some western hunting rounds. You'll have to step up the thickness of the steel though. You might even have to use hardened steel like grader blades, too.

[@brianatkinson8164]

Velocity is what penetrates things like steel. When you are looking at AR500 targets they are usually rated on caliber but some also state certain velocities should not be used. I have see some that say they can stop a 300 win mag but to not use a 22-250. When you first think about it things don't make sense because the 300 win mag has way more "power" but velocity is the exact reason.

[@kartofflespotato2350]

Saw those magnets and figured they would shatter, they are really brittle. BUT... They are also insanely powerful, so try gluing them to the sides just shy of the edge of the sled so the plate doesn't actually make contact but is close enough to be attracted. Hopefully, sled absorbs impact. EDIT: And further in to the vid you do exactly that. Maybe I should watch to the end before commenting.. :)

[@bananaballistics]

I appreciate it lol!

[@josephlawless6013]

You should run an angle across the top forcing you to slide the plate in from the side. Also throw a sand bag across the back if needed to help hold down the sled.

[@curlymaple42]

I've been wanting one of those Magnetospeed thingies.

[@chrissewell1608]

How about trying some of the small diameter bungy cord / elastic cord? That way if the metal plate does bounce off the rack, it may get pulled back, and held in place! Just wrap it around the top and bottom!?

[@nakedfreak1]

I have to say this video has inspired some truly intelligent discussion compared to a lot of videos posted. Not all of it, but some of it. I never thought the video was supposed to be about killing whitetail deer, but at over $2 a round I dont know why else to use the 450BM. Also as ridiculous as I think adding an upper to an AR is to hunt deer instead of building a dedicated rifle, I can see the cost issue for half-ass hunters and more importantly, if enough people do it they wont be able to claim the AR isn't a hunting rifle. One shot one kill.

[@rickfuerst]

I just got an AR upper in 450 Bushmaster. I got it to hunt whitetails and not steel. Just because the 350 went through steel says alot about how the bullet didn't expand.

[@jeepinintexas6215]

I'm waiting for opportunity to head down to south Texas and see how well my side charging 450 BM works on Nilgai. I found it too much for whitetails. I would rather use 300 Blackout, .243 Win or 6.8 SPC for them and save the 450 BM for hogs and animals bigger and tougher than whitetails.

[@jic1]

Not really, it's all about the higher velocity and smaller frontal area. Those bullets weren't designed to expand in hard objects in the first place. I'm pretty sure the results would have been the same if both bullets were lead-cored FMJs of the same sizes and weights.

[@rickfuerst]

@jic1 Well, I'm planning on hunting whitetails, not steel! 😁

[@7come11two]

I saw this coming. Neodymium magnets are fragile and brittle. I've had them shatter upon slamming against each other. I expected them to shatter from the impact of the rifle rounds. That's a lot of energy being transferred.

[@bananaballistics]

I want to say that I saw it coming as well, but thought there might be a chance with the little bit of spacing I left lol

[@jhutch1470]

My Bushmaster has an 18 inch barrel. I also use the 250 grain Hornady Black. I wonder if my extra 2 inches would help penetrate better.

[@bananaballistics]

It’s very possible. I would be interested to see how much of a velocity difference there is

[@possumpatrol45]

A couple extra inches always help you penetrate better! 😏

[@normangiven6436]

The magnetic field is being wrapped around the steel frame and is not doing much to hold the target plate. The force is pretty high, you will need a much more robust clamping system that allows for impact forces so as not to break. Maybe a clamp out of 4150 on a floating mount with a hard rubber for a clamping face. possible a drop in cage might work better than trying to solid mount the target. It's going to move, under those kinds of forces, so they must be allowed for in the design.

[@deadparrothead3175]

Have you tried just tarp straps on the top and bottom? On that rig it could "possibly" Work? They're fairly cheap so maybe worth a shot...

[@J9_j3]

expanding bullets is worst possible case against steel plate. i'd be curious to see FMJ .450 bush loads or at least plated copper against the mild steel plate

[@zivick]

have tangs kinda like on the bottom, but on the top, so you can only slide the plate in from the side. would work and look amazing. no need to mess with clamps every time either

[@itsamk18-ish]

Yeah but if he hits too close to the top or bottom the deformation of the steel may not allow the plate to be removed. Having some kind of clamp system from the sides or top would allow it to pull away and the steel be removed regardless the shape it’s in.

[@itsamk18-ish]

Maybe if you put some ears coming off the sides at the top of the sled with holes in them so you can run some pins through to hold the plate. You could just add it on and replace anything that may or may not get damaged

[@curlymaple42]

I'm not so sure I would say it's a disappointment that the 450B didn't penetrate. All the energy impacted the steel.

[@hwystitch]

just as a ballistic tip should do. the 350 legends ballistic tip did not preform as intended, acted more like a fmj then a ballistic tip round.

[@autumnfragrance6326]

Try 450 Bushmaster, 220 grain Lehigh Xtreme defense from Underwood ammo. Also, sectional density counts more than bullet weight for penetration.

[@chadcoxthehunterchadcox8252]

I know what my 450 does to whitetail. Drops them faster than my 7mm mag did. Sticking with my 450

[@russellkeeling4387]

You hunted deer with a 7mm mag.? To me it seems like overkill even if you have very long shots.

[@MontanaWillie44]

@@russellkeeling4387it’s really not. The 450 is overkill inside 100 yards. I killed two muleys and a whitetail with a 7 Mag and didn’t have any loss.

[@ajstevens1037]

Love my 450, deer don't..

[@Matt-tt2br]

8450 guys don't get so defensive the bullet is doing what is designed to do get inside there and pinball racquetball the organs. You can modify your bullets to go through

[@dennisp7317]

@@MontanaWillie44 how can you overkill a deer?

[@nickma71]

This newer channel is both entertaining and informative....yet,a brush gun doesn't need to penetrate steel. Keep making these.

[@evanwindom3265]

Wouldn't the increased frontal area of the .450 spread out the kinetic energy over a broader area, thereby making it harder to penetrate the steel? What's the ratio of the energy at impact to the bore diameter for both rounds? There might be a break point there somewhere.

[@forrestsmith1044]

I have a 450 bushmaster with a 18 in barrel and was using a 1\4 in plate at 50 yards wasn't thinking when I used it

[@moose.knuckle]

Still waiting for the .22 hornet vs .600 nitro express challenge.

[@maxbuust8670]

We need more

[@acousticmagnum5200]

Hey Banana, did you ever sing bass for your high-school, or college Choir??

[@bananaballistics]

I did not, they tried to recruit me in high school lol

[@chriswigington1572]

Also it would be cool to see the 30-30 vs the 350 legend even though we know what the 350 is going to do..

[@dj3114]

A more fair comparison would be the 35 Remington and the Legend. Same size bullet and close in velocity. To me, the Legend is a bolt action or AR 35 Rem. Those have been deer slayers for years.

[@tonyrafaelviamonte2114]

Me encanto el video! Saludos desde Argentina🇦🇷

[@brianbvachek3219]

I have the 450 bm. In ohio we have to use straight wall. This was my first season and first buck with it. Ignoring a potentially perfect “luck shot” the buck didnt even make a full jump when i hit him. He died turning to run and didnt make it one step. Never shot a 350, but i have hunted with a very old 45-70 lever action and even a super well potentially “near perfect” placed shot id see 5-10 yards before a drop. The exit wound on the 450 was ridiculous. Im not saying i drop deer every time i take a shot, ive had my share of 3 hour or more walks to find em. Lol I cant wait to get back out next weekend and bag another!! Hopefully replicate the same shot cause man that was easy 👍🏻 Cool video by the way! After seeing that exit wound i wanted to do some tubin’ and see if i just got lucky or what. 450 is in my opinion a great tool. Like anything, it comes down to the shooter. We all have good days and bad days! You can kill a buck with snare and a knife too. Many ways to skin a cat lol many tools to get the same job done. just my .02

[@mhcaffey120]

I have both and love both.

[@mattroy7846]

New to the channel. What's the purpose of the overly complicated sled?

[@skydivingcomrade1648]

I've had no debating, until now.

[@garyvigorito3289]

If You want to use magnets than the old style alnico ones will work (except if You hit them with the projectile).

[@motorgearhead]

Think the steel is velocity dependent. Will a 45/70 405 grn pop a hole?

[@hardtack8776]

Both rounds have relatively slow velocity and bullets that are designed to expand while moving slow. The steel penetration probably has a lot to do with the soft construction of the bullets.

[@toddwebb7521]

Well as my state allows regular bottle neck rounds the straight wall rifle stuff isn't really relevant to me, but if they ever add straight wall rifle to the management areas that are slug shotgun I might look into it.

[@MikeMarshall-uu5bc]

Good video, shows what they can do vs steel, so many other variables to, I think its all preference, comes to animals, the 450bushmaster is gonna put a bigger hole, and knock the hell out of what ever your shooting 350 legend small clean hole.

[@shanedarden369]

Not Penetrating 1/4 steel might be a good thing.... Remembering that while high velocity is important.. if it blows through your targeted animal. It takes energy with it....😮😮 The key is to have the high velocity, while ensuring its DECELERATION is so fast and violent... It creates the most hydrostatic shock energy possible. ❤

[@dasboot9471]

Ahhh yes, the controversial hydrostatic shock theory.

[@rohlfing63]

Couple of things going on here. The smaller the projectile diameter, the less energy needed to fully penetrate the steel. I don't believe it's a linear relationship with the diameter of the bullet but I'd have to go dig it my old college textbooks to confirm. Related to that, there's an impulse right at the instant of contact, and even though the .450 has more kinetic energy, that velocity element comes into play for the .350. And yeah, sorry I didn't see your previous video, I know the magnet approach isn't viable for this situation, just too much elasticity in the plate vs the rigidity of the frame and the brittleness of the magnets to keep things together on impact.

[@aaronmanemann5984]

I wonder how a underwood penetrator round would do with the 1/4" plate???

[@michaelstalenberg2407]

So is the 350 legen better? For me to convert my ar it cost 500$ less to go whit 450 bu the 350 l. What shuld i do. Hunt deer, mose and maybe fox. 300 yards max

[@95GTSpeedDemon]

angle the plates back a little bit in the sled so they dont jump out as easy?

[@narendrairengbam112]

AR plateform rifles for straight wall cartridges are surely interesting. I think straight wall cartridges need comparatively shorter barrel to obtain similar ballistics or velocity than bottle neck callibers do.

[@billyonkof3183]

Whats the point of seeing if a round can penetrate 1/4 inch steel, unless your planning to shoot something behind a barrier