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pnewlon · April 25, 2017, 07:55 AM

I've always set primers 'just below' flush by touch using my press. When I mic them, they show to be in the .003-.005 range below the base of the case. I bought a RCBS Universal Primer Tool yesterday and seated 25 using it. I mic'd the depth of 10, they run .010-.012 below the base of the case. I've never seen primers sit this deeply in a case. Starline brass with the 'R' designation. Can't get to the outdoor range until the weekend, anxious to see if that solves the problem. I'm betting it will..... How odd.

April 25, 2017, 07:55 AM	#5
pnewlon Junior Member Join Date: January 10, 2013 Posts: 7	I've always set primers 'just below' flush by touch using my press. When I mic them, they show to be in the .003-.005 range below the base of the case. I bought a RCBS Universal Primer Tool yesterday and seated 25 using it. I mic'd the depth of 10, they run .010-.012 below the base of the case. I've never seen primers sit this deeply in a case. Starline brass with the 'R' designation. Can't get to the outdoor range until the weekend, anxious to see if that solves the problem. I'm betting it will..... How odd.