THE FACT ABOUT SUPER177 THAT NO ONE IS SUGGESTING

I would absolutely try them. There is not explanation that they might not get the job done just good with your Beeman. I've experienced very good luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin etc.). I would attempt a tin and see how your Grizzly likes them as all guns seem to have their favored pellets.Good quality ammo, I