Loaded up some 129 Hornady Interlocks yesterday for my Ruger American Predator 6.5 Creedmoor. While I'm very happy with the 3 shot group, I'd like to have a little more velocity out of it. I'm loading fired Starline SRP brass, just under Hornady max at 42.3gr. H4350, cci450 primers and .020"...