March 7th, 2017, 07:03 AM
Join Date: Nov 2016
Location: CO & WY
Is there industry consistancy in how muzzle velocity tested?
Do all manufacturers use a standard of a 22" barrel or a 24", or some such standardization that they base their muzzle velocity stats on?
I am wondering because I understand that velocities are reduced as the barrel get shorter by some 25'ish FPS per inch, which means a M1A standard is going to get better velocity than my Scout by approximately 100fps give or take... but, while that may be true and an easy calculation, is it accurate to say that is the calculation between what is on the MFG box / website - and what the velocity out of my Scout might / should be?.. or is it even less because of some standard test parameter with a longer barrel?
My issue is that for ballistic calculation I know velocity is pretty important - but seeing as I don't have access to a chronograph since I stopped playing paintball and airsoft regularly some 15'ish years ago, nor know anyone with one for that matter anymore, I am trying to figure out a way to do a basic calculation model for what velocities should be, roughly, comparative to MFG listings.
Does that make sense what I'm asking / trying to do?