Im getting ready to order my barrels need to know best twist

1. 6.5 creedmoor 16" plus brake

2. 300 blackout 15" plus brake (supersonic)

3. 6.5 grendel 16" plus brake or 223 15" with brake don't know which one I want.

Thanks j

This message has been edited. Last edited by: 4570 hunter,

I would go 1:8 on all. This will be debated; but you really can't over spin a bullet in these calibers. You would like the option to use the long for caliber bullets. 1:8, or greater. Faster would be better but harder to find = more expensive.

quote:

you really can't over spin a bullet in these calibers

I agree. Especially if you are going to shoot heavy subs in the BO, you want all the spin you can muster.

300BLK, the slowest twist I'd go is 1-7 and I prefer 1-6. 1-8 isn't fast enuf for the real heavy weights, from personal experience.

If your wanting to shoot heavies in the 223, I'd also opt for 1-7 at the slowest. If you going 69gr and lighter, you can go with a 1-8.

The others, I don't have personal experience with...