NOT KNOWN FACTUAL STATEMENTS ABOUT SUPER177

I might surely try out them. There is certainly not reason that they'd not perform just good inside your Beeman. I've experienced great luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin and so on.). I would attempt a tin and see how your Grizzly likes them as all guns seem to have their favourite pellets.Umarex twelve Gram CO2