You know what my guide hunts moose with in Newfoundland? A 243Win. I was surprised too. I hit one last year with a 30-06. It acted like it didn' t know it was hit. But the land is much different than Newfoundland where you will be hunting also. I would perfer to take something heavier than either of what you got. But after seeing them kill moose with a 243win, I would say they would be good enough. I wouldn' t lose sleep over it. As long as you hit it broadsided, I believe you will be fine. I would use a bonded bullet. Or maybe Barnes if yours shoots it. You want all the pentration you can get.