Quote:
Originally Posted by Chickenthief
And the one pic that could determine it is missing ;-)
The muzzle!
Take the dummy and see if the front part of it will fit the muzzle.
If it is indeed 7,65/.30 only the tip will enter, if it is 9mm most/all of the front part will enter.
The 9mm has a stepped chamber and the dummy might be binding in that part so it looks like it is a 7,65/.30 chamber.
That or use a dial caliber. The difference between .308 and .355 is obvious.
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I can get a picture of the Muzzle.
I tried putting a .303 British Dummy round in the front and it stopped at the bottom of the round towards the bottom of the casing. (I don't have a dummy 9mm).
I assume that the dial caliper would be the best way to do this and will check tonight.
The chamber does have a large step in it which perplexed the store owner (not the original owner, just my FFL). I was under the impression that the .30 cals did not have a step because the round has a bottleneck. Maybe it is the other way around?