I'd undoubtedly consider them. There exists not motive that they'd not operate just wonderful in the Beeman. I've experienced very good luck with RWS pellets in all of my airguns (Hatsan, Crossman, Benjamin and so forth.). I'd attempt a tin and see how your Grizzly likes them as all guns https://super17702222.dreamyblogs.com/36378959/5-tips-about-super177-you-can-use-today