Rick....Excellent post that shows the reason behind my favorite subject........specialized shotshells. I also like your velocity aim as we found years ago that if the velocity was at, or slightly below the speed of sound that there was no shock/bow wave to deflect the pellets from each other. The velocity is fine with the heavy shot as it retains energy better than fine shot. We tend to lean toward heavy shot that will nail a flushing, etc bird, but still teaar his head off closer it. Best Regards, James