MOCG, I think it depends on how you came to the inertia guns. I shot Winchester M1300 and Browning BPS pump actions for years using assorted 12 gauge, 3" magnum loads (for waterfowl and turkey). When I switched to a Benelli M-2 last season I could tell I was getting far less recoil on my shoulder than I got with the pump guns. If I had started with 12 gauge gas guns, shooting the same ammo, I may feel that I was getting more recoil from the inertia gun - I believe it is all relative to what you consider recoil to normally feel like. Odessa