For the 140 I use rl-17 launching it at 2880 fps, the 123 with h4350, and with the 100 i use imr 4895Me too. Don't have a Ruger Predator in Creedmoor but all the reviews I have read are very positive for that caliber in that rifle. Was thinking of getting one also since I reload for the CM.
Creedmoor Shooter. What powder are you using with the Amax?