Originally Posted by birddog67
My federal match primers have ran out large rifle .
All I can get is CCI large rifle .
My question is how much should I back down my loads
308 178 Amax with 43.2 grains of RL15
With H4350 I have the CCI200's being .3 grains cooler for the same velocity. For example 42.5 grains with a Fed 210M is the same as 42.8 grains with a CCI 200.