I have 6.5cm, 308win, 6.5 prc and 300 prc. It’s 100f where I shoot. Both prc cartridges heat the barrel (varmint contour) up really fast. Shoot 10 rounds and wait 15 minutes for the barrel to cool down. The prc’s do shoot far and flat. The 6.5cm I think is the best all around cartridge. It...