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Posted: 12/19/2005 2:23:48 PM EDT
What is a 1:8 or 1:12 twist going to do that a 1:9 twist does not. I am thinking of buying one of the RRA varmint uppers but they come in 1:8 or 1:12 twist. Is this good, bad or indifferent. I plan on using 55 or 62 grain factory ammunition.
Link Posted: 12/19/2005 5:47:23 PM EDT
Basically,
1-12=50gr range
1-9=60gr range
1-7 70gr range put 1-8 in between.
Link Posted: 12/20/2005 3:31:12 AM EDT

Originally Posted By holtj5:
What is a 1:8 or 1:12 twist going to do that a 1:9 twist does not. I am thinking of buying one of the RRA varmint uppers but they come in 1:8 or 1:12 twist. Is this good, bad or indifferent. I plan on using 55 or 62 grain factory ammunition.



If you intend on only using 55 or 62 grain factory ammunition, then you gain nothing by going to a 1:8 or 1;12 twist. 1:9 will work just fine.
Link Posted: 12/20/2005 5:47:12 AM EDT
1x9 will shoot most of you factory off the shelf ammo that you could easily find.


1x12 for light varmint loads
1x8 a bit heavier loads than 1x9
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