I have hunted moose most of my hunting career. I used a .338 mag for many years and now when hunting moose bring a 7mm rem mag and a .350 rem mag which is darn near the same as the Whelen. It all depends on the cover what rifle I carry that morning. Last fall I was hunting a large clear cut at sun up so the 7mm was what I carried in case of a longer shot but it dropped the bull in his tracks at around 125 yds. My point, bring both ( you need a backup anyway) and you are setup perfectly.