NOT KNOWN DETAILS ABOUT SUPER177

I'd personally definitely attempt them. There's not cause that they would not perform just fantastic in your Beeman. I've experienced very good luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin and so forth.). I'd try out a tin and see how your Grizzly likes them as all guns appear to have their favored pellets.Get FREE shippin