The Firing Line Forums - View Single Post - sizing die leaving scratch marks on brass

Catbird · May 21, 2007, 07:35 PM

My RCBS 357Sig die began scratching my cases (like you described) awhile back. In retrospect, I believe I was not using enough case sizing lube. I fixed mine by removing the decapping stem from the die and polishing with a short cleaning rod and a tight-fitting patch saturated with Flitz chucked in my drill. I spent about 10-15 minutes spinning the patch back and forth inside the die. Now that I use more lube (from a pump sprayer), I have not observed any new scratching issues.

May 21, 2007, 07:35 PM	#2
Catbird Senior Member Join Date: July 17, 2001 Location: V I R G I N I A Posts: 318	My RCBS 357Sig die began scratching my cases (like you described) awhile back. In retrospect, I believe I was not using enough case sizing lube. I fixed mine by removing the decapping stem from the die and polishing with a short cleaning rod and a tight-fitting patch saturated with Flitz chucked in my drill. I spent about 10-15 minutes spinning the patch back and forth inside the die. Now that I use more lube (from a pump sprayer), I have not observed any new scratching issues. __________________ ONE NATION UNDER GOD