Where are you at in the process. Yes I am scratching my head on this one. I am no machinist but I have been present when my buddy gunsmith has done a few for me. When he did them for me the first reamer cuts the barrel larger inside and a for a shoulder where the choke stops. Second reamer cuts threads. Im not sure how this will all work for or against you
How are you measuring the bore? And using a 20 ga choke do you expect a difference in pattern density versus what is marked on the 20ga choke?
A comment if it all works. I would have the exterior of your chokes laser engraved. So never any confusion of what chokes belong to what gun. I would also have engraved with something like johna16 ga custom chokes.
Last edited by 338reddog; 01/23/23.
