rec3648
Member
What might cause a primer to back out of a recently loaded cartridge? The load is for my 270 Win. using 55 grains of imr 4350, cci 200 primers and nosler 130 grain accubond bullets. This is not a compressed load, the brass are new winchester, the primer pockets hace been uniformed, the primers feel tight when seated, the bullets are crimped with a lee factory crimp die.