gunman Thanks for the response, but I'm a bit confused by
Quote:
For example a tumbler would be drilled under size and the reamed out by the fitter to suit .


The pin must sit in the action body and have some relation to it, fixed or moving. How is that achieved, by measurement or trial and error? The same applies to the tumbler hole, it's either got a known dimension relative to the pin size or it's just wiggled and reamed until it feels right. If the tumbler was drilled undersize to start with, without measuring the pin how do you know what the undersize is, and how do you pick the right reamer afterwards?

So just what do you do to get a pin and hole "to suit"? Measure and cut to known dimensions, or wiggle and ream till it feels right?

Regards

Eug





Last edited by eugene molloy; 08/16/11 09:53 AM.
Thank you, very kind. Mine's a pint