THE SMART TRICK OF SUPER177 THAT NO ONE IS DISCUSSING

I'd personally definitely consider them. There may be not rationale that they might not do the job just fine in your Beeman. I've had excellent luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin and so forth.). I'd consider a tin and see how your Grizzly likes them as all guns seem to have their preferred pellets.The RWS Superdo