Quote Originally Posted by Taylor View Post
Eventually, yes. There is a point where increasing barrel length swings the opposite way and causes a decrease in velocity.

It’s also a myth a longer barrel automatically means better accuracy. It doesn’t.

Further explanations here
http://airgun-academy.pyramydair.com...barrel-length/
http://www.pyramydair.com/blog/2005/...important.html
http://www.pyramydair.com/blog/2007/...locity-in.html
Gets ya a bit nearer the target, though.