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Sport45 · December 23, 2012, 08:48 PM

Try some without crimping. My guess is you're collapsing the shoulder a little when you crimp.

I suggest getting a case gauge. I use Lyman, but the Wilson and I'm sure others would work too. I gauge every case used for my semi-auto rifles after sizing, seating, and again after crimping (which I rarely, if ever, do).

December 23, 2012, 08:48 PM	#8
Sport45 Senior Member Join Date: May 25, 1999 Location: Too close to Houston Posts: 4,196	Try some without crimping. My guess is you're collapsing the shoulder a little when you crimp. I suggest getting a case gauge. I use Lyman, but the Wilson and I'm sure others would work too. I gauge every case used for my semi-auto rifles after sizing, seating, and again after crimping (which I rarely, if ever, do). __________________ Proud member of the NRA and Texas State Rifle Association. Registered and active voter.