So initial 10 rounds were decent but not great. Roughly 3” group, consistently right of POA about 3”. Not crossing. Range only 30 yards.

I suspect a portion of the poor accuracy and large group was my shooting. I can shoot sub 1” groups with irons on a 22LR at that distance but I’m wondering if I’m anticipating the recoil with the 450/400. I brought along a little BSA martini and shot that between sessions w the Purdey and that was fine.

I’ve not heard of a double shooting to one side only before.

The ejectors worked perfectly.