SUPER177 FOR DUMMIES

I would certainly test them. You can find not reason that they would not work just fine inside your Beeman. I have had excellent luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin and so on.). I would attempt a tin and see how your Grizzly likes them as all guns appear to have their beloved pellets.The RWS Superdome for air rifl