The 20 actually can chuck up as much lead as a 12, I use 28gram loads in my over under browning 20. for clays I use a 30 inch trap 12 bore with 21 gram which has virtually no recoil in comparison as ...
I disagree on the 10/22 as not as good as I also have a 452 and co incidently also use Eley SS. In fact the Eley with its better lubricant cycles whereas others don't as reliably.