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**Unclenick** · July 17, 2010, 03:46 PM

You said the bore diameter. Did you actually mean the bore diameter or did you mean the groove diameter? If that is the actual bore diameter, it is correct for .45 caliber, which has .451" groove diameter. That is what a .443 bore comes up to with .004" deep rifling all around (which is standard).

July 17, 2010, 03:46 PM	#2
Unclenick Staff Join Date: March 4, 2005 Location: Ohio Posts: 21,063	You said the bore diameter. Did you actually mean the bore diameter or did you mean the groove diameter? If that is the actual bore diameter, it is correct for .45 caliber, which has .451" groove diameter. That is what a .443 bore comes up to with .004" deep rifling all around (which is standard). __________________ Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle Last edited by Unclenick; July 19, 2010 at 02:56 PM.