So how many loadings, on average - for 222, 204, or 243 whatever experiences you have to share? That's the question.
My "max load" was a 20.5 of 4198 with a 50gr bullet in the case of the .222 rem. So a "book max", not something unique and extra "ify" that only I had ever tried, and in winter. Tell me how many people out there haven't tried this load before! Come on guys.
And on the primer thing, is a 6 1/2 way different from say a CCI 400 which people also pretty commonly use in 222 rem. ? Your point on "process" though is well taken 1stpitch.