INDICATORS ON SUPER177 YOU SHOULD KNOW

I'd personally definitely attempt them. There may be not reason that they might not work just fine inside your Beeman. I have had very good luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin and many others.). I would test a tin and find out how your Grizzly likes them as all guns appear to have their favored pellets.Umarex 12 G