Artillery Barrel Specs???

[sheepherder]

Originally Posted by Jack Lawman

I do have one question... How do you index the barrel so when you screw it on the frame the sights are not canted?

Jack

OK, Jack, I finally got around to answering your question...

Here's the receiver snugged up to my Rube Goldberg artillery barrel. Threads cleaned off and a dab of grease applied. Tightened three times, snugly. It's about 1/2 turn off. (1st pic)

Here's the barrel and the receiver leveled as they would be when assembled. A .025" feeler gauge fits between flange and receiver, all around. (2nd pic)

Here we have the barrel set up in the lathe to cut the flange back .022"...That'll give me .003" of "crush"...which is approximately what I figured out that an ejector width is...(3rd & 4th pics)