First of all its a 30 cal a 208-240 pills will fly 3100 even with 26" barrel on STANDARD norma..now if your doing it for extra capacity so you can use slower powder where supposed to give more barrel life when comparing 2 diff powder in same fps.. Slower should generate lower PSI.. BUT is it worth the effort of fireforming to get extra (i dnt know how many) rounds? Im not fan of a cartridge that fly faster than 3100 it scares me
But if you're doing it for save time from trimming, extra capacity for extra fps.. Its up to you i did it to make it sexier lol but kept it under 3100 for brass life and less trimming benefits
Yup that part i forgot to mention high psi with 3100 or faster will eat that troat like how i eat pizaa lol
Barrel aint cheap even when you smith your build.. 30° is nice i look at it as SAUM in steroids..
35 is like wsm in steroids.. I think saum is more efficient.. I just dnt know if that also applicable in bigger magnum like norma magnum lol
Been using lapua stamped for my 300 norma..but its a 423 dakota..been doing a torture test flat primer ejector swipe involved..to see how strong that butthole...15-17x fires and still tight...primer pocket of course im sure he 300nm lapua going be just as strong..standard norma brass i can only get 5-7 firing and i call it dead brass...i do anneal but the pocket gets loose