7.65mm Luger specs

[SteveM]

Originally Posted by DonVoigt

I do believe the answer is :
"no one knows".

Without testing, I would "guess" that a 12" or there about .30 luger barrel gets practically all of the velocity achievable; there is a point at which a longer barrel actually slows the velocity of a projectile- I have no idea what that length is either. JMHO.

I can tell you from first hand experience that a built .30 luger carbine will not function with a 16" barrel(too heavy) but will with the 12" barrel; however, a 16" 9mm barrel on the same lower will function as it should. So with that info and a cup of coffee you can theorize some more.

Thanks Don for your input, I was guessing somewhere around 11-12 inches.

Originally Posted by Vlim

.30 luger factory twist was 1:250mm.

..or 1 in 9.84252 inches. Thanks Vlim.