How Does Barrel Length Affect Overall Power?

[Chickenthief]

Please look at the link: http://www.ballisticsbytheinch.com/9luger.html

It clearly shows that speed increases up til 17" barrel length but at 18" speed starts to drop again.
That's when powder has stopped working on the bullet and friction has gained the upper hand.

[Eugen]

Originally Posted by Chickenthief

Please look at the link: http://www.ballisticsbytheinch.com/9luger.html

It clearly shows that speed increases up til 17" barrel length but at 18" speed starts to drop again.

...and there goes my dream for a Luger with an 18" barrel.

Eric, you've got a great collection/display of varying barrel length Lugers. Thanks for posting the question. I always wondered about that question as well. Lastly, thanks for all the informative responses. Such wonderful contributors on this fourm.