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Posted: 1/7/2024 12:07:28 AM EDT
I'm thinking of putting together a 300 Blackout SBR upper, 6"-8.5" barrel length, for 100% subsonic suppressed use with 190-220 grain projectiles.

I was fairly settled on a particular barrel that happens to have a 1/8 twist, but recently I saw another Faxon is offering 1/5 twist barrels.

I'm wondering if the 1/5 would stabilize the subs better than the 1/8?

Anyone running subs in 1/8 or 1/5 care to share your results?
Link Posted: 1/7/2024 12:21:01 AM EDT
[#1]
For 190-220 an 8 twist would work, but I'd prefer (and went with) a 7 twist. It gives you great accuracy in the 110-240gr range. Five twist is beat for 265+ but limits supers entirely.
Link Posted: 1/8/2024 4:45:54 PM EDT
[#2]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By -Obsessed-:
For 190-220 an 8 twist would work, but I'd prefer (and went with) a 7 twist. It gives you great accuracy in the 110-240gr range. Five twist is beat for 265+ but limits supers entirely.
View Quote


I have no issues shooting 110 from my honey badger barrel
Link Posted: 1/9/2024 2:10:50 AM EDT
[#3]
1:7 will sufficiently stabilize just about any bullet you can fit into a 300 Blk load.  1:8 could be a tad on the low side for some of the heaviest of the bullets.
Link Posted: 1/18/2024 11:19:38 PM EDT
[#4]
I have a 10.5 inch 7 twist barrel made by Bergara and it will stabilize a 220 SMK to at least 600 yards.
Link Posted: 1/19/2024 9:03:16 PM EDT
[#5]
I had an 8.5 inch 1-7 and have been happy with it. But I have decided to go with a 7.5 inch 1-5 twist for a dedicated sub gun. Should have that together shortly and can do a range report.
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