This is a great thread lots to learn about people's experience with different calibers used while moose hunting. I would like to share something that a friend of mine who has been guiding for moose for longer than I have been alive told me. Just today infact we were sharing stories of past hunts and talking about this very topic, I explained to him how my go to moose gun while boat hunting is a savage model 99 .308 shooting a 150 grain partition and he replied that he liked to use a .30-06 with the 180 grain partitions. Then he continued to tell me that over a 15-20 year period people began to show up at camp with guns like the .30-30, .30-06, .308, .270 and rarely someone would bring a .300 win mag and these calibers worked great because they were guns people knew how to shoot and paired with a good bullet were more than adequate for the biggest bulls. Then in more recent times a person would rarely see a .30-06 at moose camp and guns like the .300 RUM, .338 win, .300weatherby etc....became more popular and funny enough as the calibers went up the success rate on shots past 100 yards which aren't all that common while moose hunting went down drastically and there was less of a success rate because people would go out and spend X amount of dollars on the latest super mag and best glass and show up with a garbage box of walmart ammo and not be able to hit the broad side of a barn at 100 yards on the practice range. So one fellow in particular came back two years later not with a .300 ultra this time but with a .30-06 and a box of Barnes X bullets he had listened to what my old friend had taught him and the first evening of his hunt he dropped a 65" bull in its tracks from a hair under 150 yards kneeling down with no rest. Moral of the story know how to use your equipment know its limitations and invest in a good quality box of premium ammo don't worry about who has the biggest cannon in camp because more times than not they come home empty handed it seems.
That being said I am just on my way to the range this evening to sight in my .338 win mag
not because I need it or will use it to hunt moose this fall because I live in a free country and can shoot any damn gun I want!!