Originally Posted by klutch50
this brings up a question i had about barrel/paint match, I have an Empire barrel kit and how tight do you wanna make the fit?
Honestly, use the smallest bore size you have. The smaller the better.
Tests have shown (yes, I can provide proof) that you get the SAME amount of breaks inside the barrel no matter what size you use.
Since size has nothing to do with how many breaks you get, that means the only thing it affects is efficiency.
So...with a smaller barrel bore, less air will escape around the larger ball, giving you better efficiency. Therefore, use a .685 at all times (unless your paint is HUGE, in which case a .687 or .688 will do).