Trapdoor Collector Discussion Board

[ Read Responses | Post a New Response | Return to the Index ]
[ Previous | Previous in Thread | Next in Thread | Next ]

Re: Tumbling

Posted by Jim S on Sunday, 24 July 2011, at 1:21 a.m., in response to Re: Tumbling, posted by Dick Hosmer on Sunday, 24 July 2011, at 12:39 a.m.

I'm using 30-1 I'm not a machineist either,& have not worked in a machine shop for 24 years. I talked to my gunsmith about this ( a GOOD one) he said with what he has he could only come close , not on the money. Some have measured odd barrels by wrapping a feeler gauge around & subtracting double the feeler gauge thickness.I don't feel that this would be accurate with a 3 groove with that much distance between high points where the feeler gauge may not follow the actual curvature & may also be easily & unnoticeably compressable. I wonder how well that would work on a .30 5 groove ?


Post a New Response

Your Name:

E-Mail Address:


Please answer the riddle feature to prevent spam:    0 (plus+) 18 (equals =)


Return to the Trapdoor Collector home page via this link.