THE SMART TRICK OF SUPER177 THAT NOBODY IS DISCUSSING

I'd personally unquestionably try them. There's not purpose that they would not do the job just great in your Beeman. I've experienced superior luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin etc.). I'd personally consider a tin and see how your Grizzly likes them as all guns seem to have their preferred pellets.The RWS Super