While I haven't hunted moose, I have had the opportunity to hunt elk on two occasions. Granted not a lot of experience, but I certainly did my homework. My collection already included a 35 Whelen, 2 30-06's, and a 307 winchester. The addition I made was a Ruger all weather s/s synthetic in 270 WSM 22" barrel. Nice and light and with the addition of the Decelerator recoil pad it really tames the felt recoil with the 150 gr loads. Although I have settled on the 140 gr accubond chronied at 3075 fps. These are my handloads, though I'd imagine a 130 gr partition would be up to the task. I suggest practice, practice and when you think you doing pretty well, practice some more. Who knows the triple shock, A-frame and failsafe have excellent reputations for deep penetration. Oh yeh, on a side note my bullet selections would have been for the 270, a 150 gr of premium construction like the partition, failsafe etc. you have to see which shoots best in your gun, for the 06 wouldhave been a 165-180 gr, again of premium construction, for the Whelen, the 225 gr partition is really hard to beatwithouth having to move up to the 250's or hard cast.Now with all that being said if I were to buy a gun for the moose hunt specifically I would do some homework and speak to the outfitters if that's how you doing it. They can give valuable insight as to the shooting conditions that you'll encounter and will often make a recomendation. Like BigBulls said the standards in Europe are the same cartridges that have been around for over a hundred years like the 6.5x55, 7x57, etc.