Let's talk about spin (barrel)...

Poll: What spin rate do you prefer? You do not have permission to vote in this poll.
1:8	42.86%	6	42.86%
1:7	35.71%	5	35.71%
I don't care	21.43%	3	21.43%
Total		14 vote(s)	100%

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Let's talk about spin (barrel)...

VASCAR2 Offline

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#10

11-18-2019, 01:46 PM (This post was last modified: 11-18-2019, 08:09 PM by VASCAR2.)

I trust Bill Alexander’s testing, short barrels (less than 16 inches) I’d use 1:7.5 twist. Anything longer than 16 inches I would use 1:8 twist. I have a 16 inch and 20 inch 6.5 Grendel AR-15’s which are both 1:9 and they shoot 123 grain better than I can shoot. I have yet to shoot bullets heavier than 125 grains in 6.5 Grendel. I have a 16 & 18 in Faxon group buy barrels in 1:8 twist If I can’t get the heavy bullets to stabilize in 1:9 twist. I think the longer barrels 20+ inches) can get by with 1:9 twist. I say this because the 264 Winchester Magnum used 1:9 twist for decades and they are very accurate.

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Messages In This Thread

Let's talk about spin (barrel)... - by rebby - 11-17-2019, 06:38 PM

Let's talk about spin (barrel)... - by kmon - 11-17-2019, 07:22 PM

Let's talk about spin (barrel)... - by A5BLASTER - 11-17-2019, 08:43 PM

Let's talk about spin (barrel)... - by JASmith - 11-17-2019, 09:47 PM

Let's talk about spin (barrel)... - by Lemonaid - 11-17-2019, 10:19 PM

Let's talk about spin (barrel)... - by rebby - 11-17-2019, 10:27 PM

Let's talk about spin (barrel)... - by Klem - 11-17-2019, 11:06 PM

Let's talk about spin (barrel)... - by Lemonaid - 11-17-2019, 11:29 PM

Let's talk about spin (barrel)... - by Redomen - 11-18-2019, 04:07 AM