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Posted: 2/8/2002 12:03:42 PM EDT
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I just purchased a Bushmaster AR15 which has a post ban lower and a pre ban Colt HBAR upper with a 20" barrel and a 1 in 7 twist. I have heard a few opinions as to the best ammo to use. It seems like the 50 or 55gr ammo is more favored, but how does it perform with the faster 1 in 7 twist? I would appreciate any comments or opinions before I buy a quantity of ammo. I've also heard that the 1 in 9 twist is more accurate than the 1 in 7, if this is true, how much more accurate is the 1 in 9 twist? Would it be worth it to re-barrel with a post ban 1 in 9 twist? |
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Or rebarrel the upper with a post-ban-compliant barrel. If you want your existing barrel modified, go to the Industry Forums to the KKF board. While there will probably be a slight reduction in accuracy, on average, using light bullets from a 1:7 vs. a 1:9, it will vary from load to load, and the difference isn't going to be significant, given that you aren't talking about a match barrel anyway. -Troy |
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