Salopian I'm not an engineer , I'm gun maker, We do things by experience and feel .I know that with modern wholey machine made guns, no matter what the makers claim about skilled hand fitting and finishing, it is a different matter. If you had worked in the trade as I did you would under stand this. For example a tumbler would be drilled under size and the reamed out by the fitter to suit .It is difficult to put across in few words to some one from a different disceplin ,but lets face it we have been doing this for a long time and the fact that people are still shooting with 100year old guns, says we can not have been that wrong.
