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Posted: 6/2/2012 12:10:13 PM EDT
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as far being accurate. i have a barrel i want use (well, because i already have it) but as best i can tell its 1/12 twist (oh and this is a 5.56) but its only 8" long including the chamber.
i have read that what im trying to build came factory with a 1/7 twist. im just wondering, if i go through all the trouble to build it am i wasting my time or should i save up and try to get a 1/7 barrel? i know this is the reloading section, but i thought everyone here knows more about this than any other section here. but just to make a reloaing question. if i do use the 1/12 what gr bullet should i use 50gr and no higher? |
| Effectively, you'll be limited to 50, maybe 55 grain bullets with a 1-12 twist - probably even more severe, given that you want to make the barrel so short. A 1-7 twist will allow you to use pretty much anything you can fit in an AR mag. If it were me, I would save up for the 1-7. |
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