04-04-2011, 03:41 PM
According to some chart I found- the difference in muzzle velocity b/w 16" and 19.5" is between 50 and 80 fps (depending on projectile weight). That comes out to b/w 1.8 and 3.5% difference. Not sure lengthening the barrel by 25% is worth gaining 3% in velocity.
I'll try to find a link to the chart. You're probably already familiar with it, though.
I'll try to find a link to the chart. You're probably already familiar with it, though.
