Well, I’m almost out of large rifle primers. If I want to keep shooting I’ll have to start using my stash of Federal 215 to use with my 180 ELDMs and 56 grains of RL 26 in my 7 Shehane. The usual answer is “reduce by 10%” but that seems like overkill to me. Is it really necessary to reduce this load by 5.6 grains just due to the different primers?