My father in law put a hurting on his moose with a grim reaper fatal steel. I've shot a few bull elk with the minimags and none went over 100 yards. Stick with an 1 3/8" or smaller cutting diameter and you will be good to go. Anything 1 1/2" or bigger will be pushing it IMHO for something like moose. I'm personally not a 2 blade fan, but I know a few people who swear by them. I just don't feel like I get the blood trail that a 3 or 4 blade does and I won't shoot a wide bladed head. I like my blades to be swept back quite a bit so they slice as they go through.