I was reading several forums about barrel length vs. velocity.
I saw this
http://www.thehighroad.org/showthread.php?t=360565
and this
http://forum.saiga-12.com/index.php?showtopic=19103
Basically the data showed that 20" barrels got slower velocities than either
18" or 28". Now that I just bought a shotgun with a 20" barrel I am a little worried. How could the 20" length be "bad"? Seems like the data should not have a trough at 20". Is this just not enough data or is something weird going on at 20 inches? I can see velocities rising up to a certain length, say 30" and then falling but to have a dip right at 20" does not seem logical.
I saw this
http://www.thehighroad.org/showthread.php?t=360565
and this
http://forum.saiga-12.com/index.php?showtopic=19103
Basically the data showed that 20" barrels got slower velocities than either
18" or 28". Now that I just bought a shotgun with a 20" barrel I am a little worried. How could the 20" length be "bad"? Seems like the data should not have a trough at 20". Is this just not enough data or is something weird going on at 20 inches? I can see velocities rising up to a certain length, say 30" and then falling but to have a dip right at 20" does not seem logical.