I recently purchased a shotgun that had a pneumatic recoil system installed. It is similar to a Hart R.A.D. This thing reduces the recoil of my 12ga O/U to a level that is just amazing to me. I have found that this type of device is somewhat common for clays shooters who put large volumes of ammo through their shotguns. Has anyone ever tried to fit one to a heavy recoiling rifle? If so, what were your impressions? Would it be worth the high cost in comparison to something like a Limb Saver? I am about to finish my 338/300 Ultramag build as soon as my custom stock arrives and I want to shoot comfortably.