As tight as possible without causing problems.
Well I guess tight isn't the best word. I like my guns to have very closely fitted tolerences. I have a SVI frame and slide that when asembled by themselves have more play than I would like. However, I fit the barrel well enough that when locked up there is ZERO movement.
Tight for the sake of tight I do not need or want, but if everything is fit well I believe there is less chance for dirt, etc to mess it up. This is contrary to the "make it loose so it is reliable in all environments" school of thought. I figure if it is fitted closely enough then there is less chance for dirt, etc to get between the moving parts.
Am I right? It has happened before. I have a .45 Government that I fit pretty snug and it can go over 1,000 rounds without cleaning and not miss a beat.
So make my answer well fitted
