DETAILS, FICTION AND SUPER177

I'd personally certainly attempt them. You can find not reason that they might not operate just high-quality in the Beeman. I have experienced fantastic luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin and so on.). I'd attempt a tin and see how your Grizzly likes them as all guns appear to have their most loved pellets.Umarex