10mm Modified 200gr XTP Wax Tube Test
3,453
Published 2011-05-12
The bullet was drilled down the center to allow more expansion. It worked beautifully. Expansion was around .8". It penetrated to 11", which should be around 22" in tissue/gelatin.
All Comments (17)
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That depends on what you're using. Virtually all 5.56mm FMJ rounds are dependent on velocity (around 2700 meters/second) to fragment in tissue correctly, which necessitates long barrels most of the time. Shorter-barrelled patrol weapons don't always have that, and police budgets can't usually afford the newer cartridges that are designed to overcome that limitation. Pistol-caliber carbines don't have that limitation and make better use of gunpowder in short-barrelled weapons.
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You're kinda right. M855 has to be moving at 2,700 fps in order to fragment and even then it is erratic. Nevertheless, M855 has a MV of 2,810 fps out of my 11.5" AR. Police departments are generally loathe to issue military ball because of liability concerns and fears that it is perceived as extra bad baby killing ammo. Most departments issue 55-65 gr soft point or OTM ammo with projectiles that reliably expand and/or fragment. (cont.)
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Fair 'nuff.
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Also, have you seen how far Glock 20s can reliably hit targets with the right ammo? I'm sure a 10mm carbine with the right optics would achieve even better performance in that arena in a potentially even more compact platform than an M4 carbine. There is also the matter of more efficient resource use. SBRs and carbines waste a lot of the powder of 5.56mm rounds in the blast and flash. Fired casings and bullets can be recovered and recycled. Fired powder can never be.
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Well, it's certainly never been tried. And there are signs that the 5.56mm platform is starting to reach the limits of its performance (the SBR velocity you mentioned is at the muzzle--drag will quickly lower this due to the 5.56mm's small diameter and low mass). I'm sure that in a law-enforcement context, a 10mm pistol and carbine combo would be a good "patrol duty" weapon combination, and if you need AP rounds, just load the right slugs into a shotgun with a dot sight.
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You've been playing too much COD. Slugs will not penetrate Level IIIA soft armor. Yes, projectiles slow with distance but an 11.5" AR has plenty of velocity to get the job done with normal defense ammo out to a couple hundred yards. It will even get reliable fragmentation from M193 out to about 50 yards. That is perfectly sufficient for the role in which SBRs are used in PDs. And yes, a 10mm SMG has been tried by at least one LE agency. ;^)
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(cont.) Even thick jacketed, lower velocity Wolf ammo (not that any department would issue it), which almost never fragments, is still more effective than pistol ammunition. It also offers the advantage of penetrating soft armor. Police departments used to issue MP-5s and other SMGs. Why do you suppose they have moved away from SMGs to carbines and SBRs? Do you believe that you know something they don't know?
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Imagine law enforcement using some of these bad boys in sufficiently long-barrelled SMGs instead of less-efficient 5.56mm carbines which waste most of their cartridge's power on useless muzzle flash and sound. Better CQB and mid-range stopping power right there!
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Actually, I don't play COD and I'd much rather shooting games become more realistic once again. I think we should take this to personal messages so the character limit doesn't become as much of an issue.
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Because 5.56mm is far more effective than a pistol cartridge, even out of a relatively short barrel.
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They should be around 1100-1150fps. I don't think I ever chronographed this load.
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Nice reloads. What kind of velocity are you getting out of these?
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Wetpack is a terrible media for anything and has absolutely no relationship to whether a projectile will defeat armor. As you mention, level IIIA is rated for .44 mag and .223 will zip right through any soft armor, yet the .223 will penetrate far less in wet pack, gel, or water than the .44. Look here: bulletproofshop(dot)com/Ballistic-Levels
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Alright, kid, now you're just being ridiculous. 10mm drops much more quickly than 5.56mm and recoils more. It would be absolutely and totally impractical for police use. As far as efficient resource use, who gives two fucks how much powder is "wasted"? A suppressed 10mm SBR would be pretty fun and I do intend to get one some day.
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I take it you're being sarcastic. But why not give these a try?
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Wow. Maybe you should tell them. Clearly they are all idiots. They really ought to hire smart people like you to choose their weapons and ammunition. I wonder if any law enforcement agency has ever considered issuing 10mm carbines.
