SUPER177 CAN BE FUN FOR ANYONE

I'd undoubtedly try out them. There is not reason that they would not work just good inside your Beeman. I have experienced excellent luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin and so on.). I'd attempt a tin and see how your Grizzly likes them as all guns appear to have their most loved pellets.The RWS Superdome for air