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Posted: 9/28/2004 4:49:34 PM EST
Whats the optimal barrel length for the 9mm to attain maximum velocity? Lets consider first normal pressure loadings (basics first).

I am guessing that somewhere between 12" and 18" the round might start losing velocity.
Link Posted: 9/28/2004 5:37:48 PM EST
What is the purpose that this information will allow you to attain? Higher velocity 9mm ammo is not much more lethal than it is out a 4" barreled pistol. A 3.5" barrel will give reliable expansion beyond 25 yards. No mattter how fast the 9mm is it drops like a stone at 100 yards and beyond.
Link Posted: 9/28/2004 5:45:13 PM EST
Since I don't what to steer from the original question (since I want to know the answer or at least hear some suggestions...) lets say it's just for the "theoretical aspect".
Link Posted: 9/28/2004 6:28:08 PM EST
7.5"
Link Posted: 9/30/2004 12:10:28 AM EST
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