True, according to Greener: "It is usual to make a gun-barrel in two parts. The breech is made of thicker strips than the muzzle."

Regarding lumps, Greener preferred "a solid steel lump fitting between the barrels, extending upwards to the top rib;" His next choice was a lump forged on the right barrel because it was used more. Greener considered the lump patented by Mr. Parsons of Birmingham(chopper lump) to have a weakness due to the amount of surface area that had to be completely brazed.

Kind Regards,

Raimey
rse