Thread indexing on Luger Barrels Question

[sheepherder]

Originally Posted by lugercollector

Does anyone know...

Do you accept WAGs???

My thought is that there was a fixture that indexed off the front sight base and then the barrel threads were milled rather than turned on a lathe...It's not a lot of stock to mill and could be done in one cut...Requires special gearing for the feed, but I've seen it done on a special screw threading mill for automotive steering gearboxes...