>>>I will also note the problem does also exist in an over/under as well. Their bbls also converge though not to the extent of a SxS. Due to the higher plane of its axis from the point of contact with the shoulder the upper bbl would have a tendency to center its pattern higher than the lower "AND NOT" just by the amount of separation of the bbls, which would be insignificant as far as pattern placement goes.<<<
Very good post, and I have friends using o/u guns shooting the exact same load I am and they didn't have as much difficulty getting their guns dialed in as I did. Everyone that I have heard about behaved exactly as you predicted, with one barrel shooting higher than the other. Some corrected it by using 2 different loads, and others just remember to aim high or low.
I'm thinking it likely that the only way I will ever get a quality sxs to shoot this load to the POA is to have one specially made for it, and it doesn't look like there is anyone around who would do it.
