Conversion 7.65 mm to 9 mm

[sheepherder]

Originally Posted by tugbrass1

I realize that a gunsmith would be required to do the work because of the head spacing concern...

You would only *need* a gunsmith if the headspace/timing needed adjustment (re-cutting the chamber or turning down the barrel flange)...[IMHO]...You can check the headspace (after installing the new barrel) yourself...You would need a setup to remove & replace the barrel yourself, of course...

Even then, from my observations, it's not always necessary to 'adjust' anything...Again, IMO, the Luger barrel thread was milled rather than turned...Which meant the barrel could be timed and chambered off the receiver and come within design specs without any adjustment necessary...Especially with the generous tolerances/clearances of military (and wartime) production...

It's aftermarket barrels that require tweaking...

...IMHO...