A SECRET WEAPON FOR SUPER177

I'd personally definitely consider them. There is certainly not rationale that they might not perform just good with your Beeman. I've had very good luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin etc.). I'd test a tin and see how your Grizzly likes them as all guns seem to have their preferred pellets.Umarex twelve Gram CO2