NOT KNOWN FACTUAL STATEMENTS ABOUT SUPER177

I might unquestionably try out them. You can find not purpose that they would not function just good inside your Beeman. I have experienced superior luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin etcetera.). I'd attempt a tin and see how your Grizzly likes them as all guns appear to have their most loved pellets.Umarex 12 Gr