THE FACT ABOUT SUPER177 THAT NO ONE IS SUGGESTING

I'd personally unquestionably try them. There is certainly not explanation that they would not work just fantastic in the Beeman. I have had very good luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin and so forth.). I might check out a tin and see how your Grizzly likes them as all guns appear to have their favored pellets.Uma