NOT KNOWN FACTUAL STATEMENTS ABOUT SUPER177

I'd absolutely test them. There is not reason that they would not do the job just fantastic within your Beeman. I've had excellent luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin etcetera.). I would try a tin and see how your Grizzly likes them as all guns seem to have their preferred pellets.Umarex twelve Gram CO2 is clear m