Thread: believe it or not?

Originally Posted by Proudkiwi

In my experience I have been able to gain some velocity back by changing to a faster powder after shortening the barrel but I have never gained it all back. Close in a couple of instances although, whether thats increased pressure or a real gain for same pressure I couldnt say.

However, the longest barrel will pretty much always win the velocity battle. Unless of course you go stupid long and friction comes into play.

No debate about velocity and barrel length. The longer the barrel the longer the bullet is exposed to the pressure so the longer it will keep accelerating.
the discussion is really about optimum burn rate and barrel length.