THE SMART TRICK OF SUPER177 THAT NO ONE IS DISCUSSING

I would absolutely check out them. There is certainly not reason that they'd not get the job done just good inside your Beeman. I have had excellent luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin etcetera.). I'd personally check out a tin and see how your Grizzly likes them as all guns seem to have their most loved pellets.U