The 300 remington ultramag offers impressive ballistics and tend to be very accurate. I have a friend who gets 3" groups at 600 yards with one.He is using 200 grain accubonds.One of the points to consider is if you are into reloading or not. Remington offers 3 levels of ammo for the 300 ultra which certainly adds to the versatility for the non reloaders. I have shot 3 caribou and 1deer withfull bore 300 ultra loads, my limited experience indicates to much gunfor both species at short ranges. Exit holes the size of basketballscreate more meat damge than I care for. A couple of my buddies accused meof attempting to behead a caribou I neck shot last year. I intend on loading the cartridge lighter for future deer/caribou hunts. The range of 30-06 performance tobetter than 300 win mag performance with factory ammo gives the 300 ultra the need for consideration.