EXAMINE THIS REPORT ON SUPER177

I would certainly try out them. There exists not explanation that they'd not work just good inside your Beeman. I have experienced superior luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin etcetera.). I'd personally try out a tin and see how your Grizzly likes them as all guns seem to have their favorite pellets.Umarex twelve