best factory ammo for long range big game hunting

[matt_3479]

This bullet will need to preform on Moose, Elk, caribou, whitetail, mule deer and Black bear. Shots from 0-600 yards. I will start reloading but its always nice to know you have a good solid factory bullet to rely on as well. I have been waiting on some parts for my reloading and other equipment so i want a factory bullet for now. I have looked at Winchesters XP3, Federal Premium Trophy Bonded Tip and Federal Nosler Accubond. Which bullet do you think will preform the best. I will obviously see which one shoots the best, but the bullet it self and how it performs is what im interested in?

caliber is 300. wsm

 

[backwoods83]

Double Tap 165 grain accubond or Win Supreme 180grn accubond.