Barrel Wall Thickness

[Tom Brown]

Just to clarify things, what should the thickness of the choke wall be for imp. cyl, mod, imp. mod, or full on a 0 frame 20 gauge Parker? I measured the thickness of my choke walls except would like to know what other choke wall thicknesses measure. Thanks in advance. T.

[Austin W Hogan]

The thickness of the barrel depends primarily on the frame size with respect to gauge, and secondarily on length. The barrels were finished by longitudinal hand filing to fit a general set of outside diameter checks. The filing was generally done to balance the gun at the hinge, but it could be muzzle heavy or light if the customer ordered. The longitudinal hand filing produced barrels that were not necessarily concentric with the bore, and wall thickness can vary side to side or top to bottom. There is no standard thickness.
Some guns appear to have thick barrels because full choke barrel muzzles are .040 or more thicker than the bore.

Best, Austin