"as for what was said about KE from the 20 gauge of Adrian's. it does not matter if the shot is from a 410 or a 10. if the pellets are the same size(6s) and the velocity is the same then the per pellet KE is the same."
***That's something that many people have no idea about and think you have to go to a 3 1/2" 12 gauge for extra power, when if the velocity is the same what you are getting is more pellets in the shell and not more power. However, if that pellet count is tight and accurate I would imagine Brad would agree that you greatly up your chances of killing a bird.