Well I wouldn't doubt ruger couldn't handle bigger rounds then are available in their magnum, I know that cartridges like the .375 H&H .404 jeff, .500 jeff, .505 gibbs operate at relatively low pressures, but you still need a more powerful heavier action to handle that size round and the energy it produces. And cz uses the same types of actions in both their magnum safari and standard cz 550 safaris. I'm not saying ruger isn't bad, in fact I love ruger, and i know my opinion and experiences will differ with both than others but I just like the cz 550s.
