User Panel
User Panel
User Panel
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Posted: 9/17/2009 12:38:45 PM EDT
[#1]
Been discussed many times. Faster twist will stabilize longer heavier bullets. 1-7 will cover any of the heavy projectiles and may do well with 55 grainers. The 1-9 should do well with 50-55 grainers and may stabilize heavier bullets. 1-8 is a good compromise.
For an M4 that is not ment to be a one hole tack driver a 1-8 or 1-9 will work well for most OTC ammunition. |
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Posted: 9/17/2009 2:19:24 PM EDT
[#2]
Unless you plan on grouping 75gr bullets .5MOA or shooting unusually light bullets, get whatever is cheaper or available.
1:7 is milspec, but only because tracers need that fast of a twist to stabilize. |
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Posted: 9/17/2009 5:27:33 PM EDT
[#3]
Quoted:
What is the difference between a 1-7" Twist, 1-8" Twist and a 1-9" Twist? I am looking for a new barrel for my M4 carbine. 1" and 2 inches. The heavier and longer bullets will need a faster twist. If shooting .22 LR go with a slower twist. 458 |
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