Hi to all, in re-barreling Lugers, I have found while taking barrels off, and while putting them back on, seldom does the index marks align... before? After? During?... always just a fraction of a red frogs hair off?... Well, I have a partial theory on the deal... I think the barrels, when original mated to the receivers, are as close to perfect as can be as far as top dead center, and parallel rear sight top and front sight base top, and then indexed marked as such! ... Then, for what ever reason, they may be disassembles and sent to different finishing areas... or, at the very end of the manufacture process, they are actually put on paper and ever so slightly adjusted to be on center, with the sights on center?.... The up side to this is very little adjustment has to be made in the field... Left handers are just screwed and will normally shoot a full inch to the left... Down side, is now the marks do not align?... And if you re-align them, you'd be right at the point prior to the range target test?... All conjecture on my part.. but, it's the only thing I can see that applies to what I have experienced?... Best to all, til....lat'r.....GT...
Oops! Make that a full inch to the right! I'm left right challenged!!!