Shoulder set-back .30 Luger

Rickybill · 12-08-2019, 04:59 PM

I had always loaded bullets with a cannelure, roll-crimping as the final step.
I just loaded some 90gr. XTPs with no cannelure, and an ejected live round showed the shoulder had collapsed; is lack of crimp creating excessive case OAL, and the case mouth is being jammed against the end of the chamber?
It's possible the case is slightly long, as I did not measure any after the last shooting/loading, and that, combined with no crimp?

12-08-2019, 04:59 PM	#1
Rickybill User Join Date: Aug 2018 Posts: 25 Thanks: 0 Thanked 12 Times in 6 Posts	Shoulder set-back .30 Luger I had always loaded bullets with a cannelure, roll-crimping as the final step. I just loaded some 90gr. XTPs with no cannelure, and an ejected live round showed the shoulder had collapsed; is lack of crimp creating excessive case OAL, and the case mouth is being jammed against the end of the chamber? It's possible the case is slightly long, as I did not measure any after the last shooting/loading, and that, combined with no crimp?