Originally Posted by
Alaskapopo
Ballistics at 10 yards from a 7.5 inch 5.56 are less than ideal. I am not talking about long range accuracy but rather terminal ballistics. (ie stopping power)
Also if the threat is shooting at you from 300 yards it most definately is self defense.
Pat
I've always said the same thing. 75gr TAP 5.56 gives you a few yards of max fragmentation. But, 50gr TSX from Black Hills will give you something like 70 yards of maximum expansion from a 7.5" AR. From a 10.5" we're looking at closer to 115 yards, where TAP 75gr 5.56 gives you about 40 and TAP 75gr 223 gives you something like half of that.
Basically, a 10.5" loaded with Black Hills 50gr TSX or 70gr TSX will perform similarly to a 14.5" loaded with 75gr TAP when it comes to terminal ballistics.
It's amazing what the 50gr Black Hills TSX and 70gr TSX can do. As it stands, TSX gives you the greatest distance from short barreled rifles where it still performs at it's maximum. Also, for your line of work, the Black Hills 50gr TSX is designed for typical LE encounters and has a more robust design than other TSX offerings for better performance against auto glass.
Personally, the only way I'm running a short barrel is on an SBR'd lower. If I can't have that for whatever reason, I'll run a pinned 14.5" or standard 16" and make due when working in or around vehicles and structures. I can clear a building just fine with a 16" AR, I just prefer a 10.5".
Last edited by jonconsiglio; 06-18-12 at 17:34.
Proven combat techniques may not be flashy and may require a bit more physical effort on the part of the shooter. Further, they may not win competition matches, but they will help ensure your survival in a shooting or gunfight on the street. ~ Paul Howe
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