Thanks all for the kind remarks! My next attempt at getting even better regulation will be using lighter slugs. I will probably order a hollow point version of the one I am using now, and possibly ordering one from Accurate Molds.

I forgot to mention that I also tried some different shot loads, all factory loads from RST. It seems that it likes the fiber wad versions the best, patterning about 37% at 40 yards (improved cylinder). Getting about 70% patterns at 25 yards, so I may try to take a fall turkey with it next weekend.