I have two rifle that use magazines, A Beeman Super 12 in .20(wife's) and my Rapid 12/250 and both feed flawlessly with wad cutter and hollow point pellets. Also in checking the owners manuals of my daughters old Gamo(model 880) it says to get best results use Gamo pellets. The manual for the RWS 350 says basically the same to use RWS pellets. I would be willing to bet that Beeman, Crosman, AirArms and every other manufacture of both air guns and pellets recommend the use of their own pellets. This does not mean that different pellets from different manufactures won't work just as well. I still say that in my opinion the best hunting pellet is the Crow Magnum. It opens even at lower velocities and penetrates very well on even larger game to give quick kills. Just like centerfire big game bullets. Lawdog