THE 2-MINUTE RULE FOR SUPER177

I'd definitely try them. There's not cause that they would not perform just fantastic within your Beeman. I've experienced very good luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin and many others.). I might consider a tin and see how your Grizzly likes them as all guns seem to have their favorite pellets.Umarex twelve Gram C