I've had Limbsaver's on a light Win. 1300 12ga turkey gun, a couple of Encores, and on an Omega. It's probably just me, but the recoil on my old 30-06 Encore felt just the same with the Sims as is did with the factory one. I did notice a bit of difference on the 12ga with the 3" magnum loads (after a couple of shots, it hurt with both of them, LOL).