A local gunsmith converted my 4-inch model 64 to a 3-inch by adding a model 65 barrel. Shooting Winchester 130 grain FMJ and Herters 158 grain FMJ, function and accuracy were fine at 15 yards but the flash and sound were like 110 grain .357. The same ammo in my factory Model 13 had both softer flash and report.
I don't have any other revolvers with such a noticeable cylinder gap--is this the reason? Is it a problem?