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1/25/2018 7:38:29 AM
Posted: 1/9/2006 8:31:15 AM EST
i have an ar that has a 1 in 9 twist i shot 55gr bullets and have super good groups. i am looking at getting a colt m4 but it has a 1 in 7 twist will the 55gr bullets work just as good or will i have to change bullet weight to get the full potential from the gun . i manly use would use for hunting coyotes so i would need to be able to get at least a 1 1/2 inch groups out to 250 yrds
Link Posted: 1/9/2006 8:43:30 AM EST
55s will work fine. You might have to try a different brand than what you use now because all barrels are individuals in what they like and don't like.

To get 1.5 inchest at 250 yards (.6 MOA) you will need a match barrel (which no Colt M4 has) and handloaded ammo tuned to it.
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