The only currently available technique I hold out hope for is some form of spray welding to restore the barrel's interior to solid, uniform steel.

Tubing/sleeving into the breech of a gun is very viable, esp. with TIG welding. But, properly done, it isn't inexpensive. There is a fairly broad range of guns that can get a "second run" via this technique at a reasonable return on the cost. Bottom of the heap guns are best consigned to a comfortable place on a wall or over the mantle. Top of the heap guns should have new barrels, spankin' new from a time served barrel maker.

Chrome plating is common for extra runs of aircraft engine cylinders. I don't discount an adaptation to gun barrel repair.

DDA

Last edited by Rocketman; 12/14/20 12:34 AM.