I Have Been Shooting The 6mm Rem For 40 Years, The 244rem Before That.
It is my unvarnished opinion you blew primers by being WAAAAY over pressure from too much foomfodder. There is NO reason that I am aware of for you to crimp those bullets. The crimp being there or not being there will not affect top end pressures like that one iota. Back off the powder ration considerably.