The Firing Line Forums - View Single Post - 45 Blackhawk convertible and 'ruger only loads' safe?

rclark · July 26, 2014, 02:37 PM

Easiest way is to check the serial #. If it has a TWO digit prefix (XX-YYYY) then you can shoot ROLs. If it has THREE digits (XXX-YYYYY) then it is a medium frame revolver. Of course if you want to be absolutely sure, measure the cyinder with a cailbers. A larger frame cylinder will be 1.732 diameter and 1.703 in length. The mediem frame cylinder will be 1.675 in diameter, and 1.610 in length.

July 26, 2014, 02:37 PM	#2
rclark Senior Member Join Date: February 12, 2009 Location: Butte, MT Posts: 2,650	Easiest way is to check the serial #. If it has a TWO digit prefix (XX-YYYY) then you can shoot ROLs. If it has THREE digits (XXX-YYYYY) then it is a medium frame revolver. Of course if you want to be absolutely sure, measure the cyinder with a cailbers. A larger frame cylinder will be 1.732 diameter and 1.703 in length. The mediem frame cylinder will be 1.675 in diameter, and 1.610 in length. __________________ A clinger and deplorable, MAGA, and life NRA member. When guns are outlawed, only outlaws will have guns. Single Action .45 Colt (Sometimes colloquially referred to by its alias as the .45 'Long' Colt or .45LC). Don't leave home without it. That said, the .44Spec is right up their too... but the .45 Colt is still the king.