Researcher,

Thanks for the tip, with the machinist scale the chamber indeed does measure 2 7/16 which coincides with your numbers. Also the forcing cone is just a smidgen over 3/4".

The barrel is 28" in length and are marked STERLINGWORTH FLUID COMPRESSED STEEL.

Some other details on the gun is that the Barrels alone weigh in at 3 Pounds and the gun comes in at 6 Pounds 4 Oz.

Stock dimensions are: DAC 1 5/8", DAH 2 3/4", DAT 7 3/4" and length of pull over the hard plastic buttplate is 14" to the front trigger.

Right barrel has .015 Constriction (Mod)
Left Barrel has .029 Constriction (Full)

Solid Rib, single front bead.

Thanks,
WBLDon