This crowd went as far as trying 18inches then cutting down 1 inch at a time. 16-18 inch seems to give the maximum velocity in most cases. Click on the Muzzle Energy Graph link on each page for a better visual indication of the results.

http://www.ballisticsbytheinch.com/45auto.html

http://www.ballisticsbytheinch.com/45auto2.html


They've done a whole bunch of other pistol cartridges, and 223 too.

Originally Posted by mauserand9mm
Originally Posted by mauserand9mm
Originally Posted by Raspy
Whatever you said...everyone knows you are a lying jerk.

That's a bold assertion. Point out where you think I lied.

Well?