I'd absolutely consider them. There exists not purpose that they would not work just fine in your Beeman. I've experienced fantastic luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin etc.). I'd personally check out a tin and find out how your Grizzly likes them as all https://super17755222.blogacep.com/41312132/not-known-factual-statements-about-super177