EXAMINE THIS REPORT ON SUPER177

I'd surely check out them. There is not purpose that they would not function just fine in your Beeman. I have had good luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin etc.). I would try a tin and find out how your Grizzly likes them as all guns seem to have their favourite pellets.So watch out for our companies when shopping