6.5 PRC barrel twist for copper

[The Pilgrim]

New one for me, not had anything to do with it this far. Thoughts on twist for say 127-130g copper?
The good old swede coped with a 1-9 shooting normal 140g…

 

[acourvil]

It will depend on the bullet. Barnes 127 LRX says 1:8 or faster; Hammers range from 1:9 to 1:6.5; Warner Flatlines say minimum 1:8. A 1:7 twist would likely work for most. And there really isn't a downside for fast twist for the solids (but there might be if you are also shooting lead bullets, especially Hornady)

 

[Schw15]

I would go 1-7 or 1-7.5 for the solids over spinning them is good. I ran my hunting solids 1 twist rate faster and above 2.0 on stable

 

[XTREM HTR16]

Depends on the bullet.
7.5 twist for most Hammers