9mm or Parabellum?

[Sieger]

Originally posted by unspellable
It's not the case length that differs, but the over all length, important for feeding through the Luger magazine. This is because it's a tapered case. Not so important in other 9 mm pistols, partcularly double stackers where the double stacking compensates for the taper by toeing in the cartridges.

AMEN!!!

For round nose ammo, I've done extensive testing of original "vintage" ammo and have found 1.169 to 1.173 for the 9mm. 1.15 sounds like the truncated cone (flat nose) ammo length for the 9mm.

Sieger