It isn't uncommon for revolver barrel lengths to be wrong - the nature of building a revolver is very different from a semi. The barrels were fitted until they were right - not with any precise measurement in mind. If the barrel fitted at .004" B/C Gap and crowned with one or two turns and it was properly timed, it didn't matter if it was 1/4 or 3/8ths "too long" - it was correct and within spec. Interestingly the specs for revolvers are quite loose - you can get a revolver that is within spec in every dimension for every part, but due to the tolerances of the design, won't fire.




















































