Jim Brockman shot the barrel before sending to me, getting the right height rear sight (the middle one, I believe), and made a slight rear deflection as I need for my eyes with open sights.
I had one extra box of five Brenneke Classic Magnum slugs to test with. Fired two at 15, hitting a two inch dot, and went to 25 and shot my remaining three slugs offhand. This is my three shot group.