5 56 NATO Ammunition: XM193 55gr. vs M855 62gr.

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[Music] [Music] all right we're not on the range today we're one of our newly acquired training facilities and today we're talking about five five six NATO ammunition specifically the X M 193 fifty-five grain ball versus the m855 62 grain steel core penetrator and before we go any farther let me show you a close-up of these two rounds on your left is the 62-grain penetrator and on your right is the 55 grain ball the external dimensions are the same but the 62 grain is designated by this green tip also because a magnet only sticks to ferrous metals you can put a magnet up to this projectile and it'll stick there's a very important thing about the 62-grain steel core ammunition and that is the half-truth that it won't shoot from an a.1 platform rifle now this has a two hand guards but it's an a.1 and here's a magazine at the 62-grain ammunition let's see if it'll shoot of course it'll shoot out of an a.1 but that's only half the story let me show you something now what I've got here is these two high-tech snake targets and I'm going to go back 20 yards and shoot them both with this a1 rifle but I'll shoot the target on your right with the 55 grain ball ammunition and the target on your left with the 62 grain steel core penetrators and we'll compare the results so how do we do well when they're 55 green ball because of the way this rifle sighted in it's going to hit a little low at 20 yards but notice that all the bullet holes are round as we're with the 62 grain bullets we see some of them are starting to keyhole even at only 20 yards and that's because the one in 12 twists of the same one barrel will not stabilize the 62-grain projectiles so if you started shooting any real distance they could not be fired with anything you could call true accuracy so what about the power of these two rounds well I've got the chronograph set up at 7 yards and we'll start with this colt ar-15 a2 it's got a 20 inch barrel and we'll start with the 55 grain ball and 3151 3206 31:42 3150 3195 now let's see how that compares to the signature 3060 3091 thirty seventy five thirty sixty five and thirty seventy seven well right about now someone's going to complain that I'm using a 20 inch barrel and not the 16 inch carbine that everybody uses these days okay let me have one of my crew come on here with a short-barreled version and we'll see how those numbers compare now brian is going to shoot the rock river arms carbine with a 16 inch barrel and again we'll start with the 55 grain ammo 31:12 31 2631 1330 82 and 3125 now let's see how that curves the 62 30:35 2975 29 69 29:56 and 2996 now let's go crunch the numbers so how did we do Brian what numbers did you get the 16 inch barrel 55 grain bullet I got 31 11 62 grain bullet I got 29 86 when that lost 125 okay and with the 20-inch barrel I got 31 68 with 55 gram and 30 73 with the 62 grain for a net loss of 95 feet per second and this comes with the normal caveat that chronographs don't always agree with each other and various environmental factors can affect your results so the results somebody else gets somewhere else on a different day might not be the same results we got here today but either way we can see when you go to the heavier bullet you do lose some velocity now we're back on the range and you may have to deal with some gunfire in the background and I want to discuss a little bit about the accuracy of these two rounds I'm going to go back 100 yards and I'll shoot the target on your left with the 55 grain and the target on your right with the 62 grain will shoot them both out of this colt ar-15 a2 and see how the accuracy of these two cartridges compare so how'd we do well all the shots are in the black but you can see that the group with the 55 grain is just better you can also see that the group is in a different place even though the poorness of that group it's hard to tell and so what that does tell us is that the dynamics of the rounds might require that you reserve your rifle when you change from one ammunition to the other it also shows us the 55 grain is just more accurate not one minute ago I was talking to a very experienced shooter here on the range that said he considered the green tip ammo to be the least accurate five five six ammo you could buy why is that well this ammunition is a lead bullet with a copper jacket the 62-grain has a steel core in it it's not a homogeneous bullet that means that that core can be a little off-center and your accuracy can suffer now although that appears to be sufficient accuracy at this distance it can really start telling on you when you shoot four and five hundred meters so does the steel core ammunition have any good features yes let me show you one now you may have seen me do a demonstration like this before we've got our favorite target soda jugs and the behind these cinder blocks set up three two and one but these are not the chief $0.99 cinder blocks these are the expensive two dollar concrete blocks and I'll go back 40 yards and I'll shoot this with a 55 grain full-metal-jacket ammunition and see how many shots that fire before our soda jugs start taking hits then we'll repeat that with a 62 grain steel core ammo and see if it takes any less shot well we blow up those fart jugs a couple of them just got knocked over they didn't actually have holes in them and by my count that was 40 rounds now let's reset this up shoot it with our 62-grain and see if we can bring that round count down so did the 62-grain steel-core penetrators help us penetrate these concrete blocks you know not nearly as much as I thought they would now the round count did go from 40 to 39 and you can see I shot over the top a few times you can see the impacts in the dirt bank so the number of rounds that actually hit these is about 35 but 35 compared to 40 I don't consider that a significant improvement let's try something else so let's go without the concrete blocks and just shoot the soda jugs and see what kind of effect we get I'll shoot from 10 yards and again I'll start with the 55 grain well that looked pretty impressive but it only penetrated the first two let's try that again with the 62 grain and see if it makes a difference well it went through three instead of two so that is more however when I shot the 55 grain this with the first bottle of the line when I shot the 62 grain this was the first bottle now let's set this up again and see if we can get consistent results so we reset up and again I'll start with the 55 grain and now the 62 grain so again we see with 55 grain it went through the first two and with the 62 grain through the first three and again we see that the first jugs in line the 55 grain is a lot more damage than the 62-grain did this is significantly more than the first 62 we had but still not near as much as the signified now I've said this before and I'll say it again I know that shooting soda bottles is not a scientifically definitive test but it is a lot of fun and the results I'm getting here very closely mimic the results I've seen in the field with these two rounds now let's try our improvised body armor we've got our ceramic floor tile which we know will shatter after the first shot or two but if you wrap it in enough duct tape we might get four or five shots out of it and behind that we've got my algebra book and then behind that our favorite target soda jugs so we'll shoot these from ten yards and again we'll start with the 55 grain so how did we do well all four shots went through the tile and it will still withstand a few more hits so it looks like wrapping it in duct tape really does the trick all four shots went through our book and all four were stopped by the first two soda jugs but what I recovered was nothing you could even call a bullet it's just powdered bits of projectile now let's set this up again and see if our 62-grain gives us any different results so now I've got a new tile in a new book and we've added a couple of jugs just in case so let's go back ten yards and try the 62-grain well what can I say except damn now in any comparison of these two roads we have to discuss the tumbling bullet earlier we saw that if you shoot the 62-grain from the wrong rifle little tumble in flight and cost you accuracy but what I'm talking about now is that a lot of people will tell you that the 55 grain was designed so that when it hits the intended target it'll start to tumble and cause a lot of damage as where the 62-grain won't is that true all I can tell you is that I have never seen in any official military publication that the 55 grain was designed to tumble but whether it was designed to or not the reality is it quite often will and it causes a lot of damage when it does but will the 62-grain tumble in the intended target and if so how much damage will it cause and the big one is how can we test that well the way we'll test that is with a meat target now for those of you who haven't seen this before its pork steaks to simulate a pectoral muscle then pork ribs then our bag of oranges lung tissue then more pork ribs and then behind that as always the high-tech police bullet stop and what we'll have is we'll give it some leather jacket skin and I'll put the jacket on it inside out so the lining can act as rudimentary clothing and we'll go back and shoot this from 10 yards and again we'll start with a 55 green so how do we do well all four rounds got complete penetration they tumbled and did a lot of damage to our orange lung tissue the ribs on the back are pulverized and where the bullets hit the ribs broke them but all of the bullets fragmented and all of those fragments were stopped by the first or second layer of fleece only one round is even close to intact and I'll show you a close-up of that a second but what we can tell from this is that the bullets do tumble and they do cause a lot of damage and these are the biggest pieces of projectile that I found and this deformation is part of the tumbling now we'll put our meat target back together and shoot it with a 62 grain and see what happens now it's shooting the meet target where you really see the difference in these two projectiles the ribs on the backside you saw with the 55 grain had a lot of damage with the 62 grain there's damage but not nearly as much now the damage to the orange lung tissue is there but again to look at it to me it doesn't seem to be as much but the real difference is that biggest bullet fragment from the 55 grain projectiles was recovered from the second layer of fleece I recovered these two bullets from the twenty-fifth layer of fleece and that is a big difference in penetration if you've seen our other videos where we shoot the meat target almost all bullets after going through the meat target or stop by the first or second layer of fleece 25 layers that's a lot of penetration now let me show you a close-up of these two bullets now these bullets did deform but they still penetrated a great deal so what's the takeaway from all of this two main things power and accuracy we saw that the a1 that it's one in twelve twists won't shoot the 62-grain accurately this rifle has a one in seven twist some have a one in nine and that'll stabilize both projectiles really well but we still saw that on the hundred-yard target the 62-grain ammo had a bigger group it didn't seem much bigger but when you're trying to shoot Jackrabbits at 150 yards plus that little bit of loss of accuracy will really make a difference and that loss of accuracy is due in large part to the projectile is not a homogeneous medium there's parts in that 62-grain bullet but if they're slightly off-center will cost you accuracy now the other thing is powerful the 62-grain is supposed to penetrate more and we see that in some things that does and some things the difference wasn't that profound in the concrete blocks the difference wasn't that impressive but in the improvised body armor it was very impressive if someone thinks he's going to be shot at with the 62-grain ammo and he thinks he's going to run down to the hardware store and get himself some duct tape and a tile and put together some improvised body armor I would advise that guy to stop at his Attorney's office on the way and make sure his will is in order but the real difference came got the meat target we could see that the 55 grain with its tendency to tumble and the fragments did significantly more damage the closest thing you could call a whole bullet was stopped by the second layer of fleece as where the 62-grain projectiles caused less damage but penetrated a great deal more they went through the twenty-fifth layer of fleece which I know doesn't sound like much when you're shooting fleece but that really is a lot more so depending on what medium you're shooting the 62-grain penetrator does in fact penetrate but the real bottom line is which ammunition is better that all depends on you and what you expect to shoot with it so as always don't try this at home I'm what you call a professional and thanks for watching the 55 grand vs. 62-grain video [Music]

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Channel: Paul Harrell

Views: 422,215

Rating: 4.9537244 out of 5

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Length: 19min 0sec (1140 seconds)

Published: Thu May 18 2017

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