So from what I can gather, .001 to .002 is the desirable interference.
After careful measuring, my trunnion is .904 and the new barrel (kit build) is .910. Which leaves me with a .006 interference. Way too much.
I am assuming that the barrel is the part to modify. Would fine emery cloth be the right way to take .004 off the barrel? (No lathe available.)
You can take it from the bbl or the trunion, or both. Emory cloth works fine. A brake cylinder hone is dandy for honeing out the trunion.
Thanks for the reply. I used emery cloth to polish the journal down. I did find .002 to be too light a fit. My end mill for the barrel pin cause the barrel to walk out of adjustment. Had to make a oversize pin and redrill. Barrel is in place and the action functions well. It strips rounds from the mag. It passes a std round, passes a rd. with a .004 shim, and fails the CIP "no go" gauge.