So far...........so good.
Took the gun to the back yard today and started to rough it in with 3" lead #7 1/2 shot. The very first shot at 30 yards carried enough pattern density to be a reliable killer at 30 with the Walmart Remington lead shells. And, surprisingly, the POI was dead-nutz on left to right. I needed to bring it down 6-ish inches. But it was close enough it would DEFINITELY have killed a bird first shot from "new".
Hoping to tweek it a whisker more with lead tomorrow then run a TSS #9 down range and see............