After having the Mossberg for a couple of months now I have figured out how to load 4 shells weakhand without the lifter biting me. Also I have put a few rounds down range .12ga Bird - 885, 12ga Slug - 45, 12ga Buck - 30. So far it has cycled everything. I have been using mostly cheap Federal 100 round bulk bird shot, 7 1/2, Fiocchi low recoil 9 pellet 00 buck, and Fiocchi 7/8 ounce low recoil slug. I have zero complaints, well maybe that the piston area gets pretty dirty after about 300 rounds, but other than that it has been top notch.
Still waiting on the Loki rifle. Should be here soon.