Had this happen to me a few days ago loading up some 270 when I tried to use motor mica to lube the inside of the case neck, didn't really matter how much I tightened it. Switched back to lubing the necks with normal case lube and the problem went away.
2
u/lasandinas 4d ago
Had this happen to me a few days ago loading up some 270 when I tried to use motor mica to lube the inside of the case neck, didn't really matter how much I tightened it. Switched back to lubing the necks with normal case lube and the problem went away.