P08 - bulgarian

[sheepherder]

Originally Posted by luger.parabellum

The barrel is the same; to get a 9x21 IMI from a 9 mm Para they don't modify (spoil) the barrel but they bore the actual chamber of the pistol.
9x21 IMI and 9 mm Para have the same diameter but the chamber has a different lenght as the case lenght of a 9x21 IMI should be mm 21.15 (0.833 in) vs 19.15 mm (0.754 in) of the 9 mm para.

Sergio -

is it required to mark/engrave the new caliber on the pistol when it is altered??? Or can you leave it 'bare'???

I think, if it was me, I would make a 7.65 'liner' to press in 9mm barrel...leave 9mm lands & grooves; just press [lightly] the liner in...Liner would only have bottleneck of chamber...Would that satisfy the authorities???