NOT KNOWN FACTUAL STATEMENTS ABOUT SUPER177

I would certainly try them. You can find not motive that they would not work just high-quality inside your Beeman. I've experienced great luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin and many others.). I would check out a tin and find out how your Grizzly likes them as all guns appear to have their favourite pellets.So loo