super177 No Further a Mystery
I'd undoubtedly try them. You can find not purpose that they'd not work just fantastic as part of your Beeman. I've had great luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin and so on.). I would try out a tin and see how your Grizzly likes them as all guns appear to have their favourite pellets.The RWS Superdome for air rifle