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Luciano · July 12, 2012, 01:58 PM

So I got my first mystery decapping problem yesterday with some F.C. 9mm brass. No matter how I'd adjust the decapping pin the spent primer would still be in the pocket. Luckily I noticed the problem right away as my case feeder would not feed another shell, it moves the shell into place at the end of the upstroke. Loading on a Dillon 650 with RCBS dies. A quick search today revealed the culprit. I tapered the decapping pin and loaded the FC brass with no problems. Have you had that happen on other calibers too?

July 12, 2012, 01:58 PM	#1
Luciano Senior Member Join Date: March 22, 2006 Posts: 111	Primer pullback?! So I got my first mystery decapping problem yesterday with some F.C. 9mm brass. No matter how I'd adjust the decapping pin the spent primer would still be in the pocket. Luckily I noticed the problem right away as my case feeder would not feed another shell, it moves the shell into place at the end of the upstroke. Loading on a Dillon 650 with RCBS dies. A quick search today revealed the culprit. I tapered the decapping pin and loaded the FC brass with no problems. Have you had that happen on other calibers too?