User Panel
User Panel
User Panel
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Posted: 4/1/2001 7:21:00 PM EDT
[#1]
You can shoot 62 grain .223 bullets out of an AR15A1 barrel but accuracy will suffer. The 62 grain bullets need a 1:9 or 1:7 twist barrel to give them enough spin to stabilize properly. If you go with an A1 barrel use 55 grain bullets. They will work well and you will save money since the 55 grain ammo is cheaper.
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Posted: 4/1/2001 8:52:11 PM EDT
[#2]
I'd go with the Bushy. My Bushy M4 upper IS totally reliable with everything I've fed it. The 1 in 9 twist of the Bushy is more versatile than the 1 in 12 of the Fulton. The Fulton upper is great if you're only going to shoot 40- and 55-grain bullets. If you happen to get a Bushmaster upper that isn't totally reliable, they'll fix it so that it is.
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