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Sport45 · February 19, 2008, 11:36 PM

Measure the widest diameter of the slug. That will correspond to the minimum groove diameter of your bore. Make sure the bore is clean and run a patch damp with gun oil through before slugging.

(I'll wager you will find the bore to be .312 or greater.)

February 19, 2008, 11:36 PM	#4
Sport45 Senior Member Join Date: May 26, 1999 Location: Too close to Houston Posts: 4,196	Measure the widest diameter of the slug. That will correspond to the minimum groove diameter of your bore. Make sure the bore is clean and run a patch damp with gun oil through before slugging. (I'll wager you will find the bore to be .312 or greater.) __________________ Proud member of the NRA and Texas State Rifle Association. Registered and active voter.