I finally found a Mossberg 930 JM Pro in stock. Keith's sporting goods had 3 of them at the gun show on sale for $600. I picked up one of the 22" models. I cleaned it, put a super light coat of oil on everything, adjusted the over travel stop, and put the .25" drop spacer in(that lowered the comb). Today I put 145 rounds through it. 5 Rem 3" magnum slugs 10 Rio low recoil 2.75" slugs 5 Rio low recoil 2.75" 00 buck 50 estate 2.75" #8 target loads 50 Rem 2.75" gun Club #7.5, and 25 Rem game loads 2.75" #7. It cycled everything, and is much softer shooting than my 590 was. The slugs were high and left. They were shot from a table at 30 yards. Now that I think about it. I was centering the bead in the middle of the target. Next time I'll put the top of the bead at the center. That might take care of it shooting high. The shooting left will take some barrel bending (not sure I'm comfortable doing that myself). Had to take a Jeep pic while I was there. The 930 jm pro Slug target. 3 in the same hole, and one that I pulled.