On the other hand when I switched to a magnum primer in 270 with a R22 turned it into one holer. Also, when loading TAC in a .358 a mag primer helped tighten it up a bit. I standardized awhile ago with fed 215's when things got tight and bought a pile. Currently loading them in a 308 with 190smk and R17. Probably could get a wee bit more speed with a regular primer and higher charge weight, maybe. Just starting to think about reworking some loads with 210's and see where it goes.
