Getting ready for my first precision rifle build. Is there any real world difference between a 8 twist and a 8.5 twist barrel for use with the heavier projectiles (139-142gr)?
Most recommendations seem to be for the 1-8" rate, but I read of many using the 1-8.5" rate.
Many of the available barrels I have located are in 8.5, and I am slightly concerned about ordering one.
Any input would be appreciated.