How would you compare the .308 Winchester round and .300 Winchester Magnum round?

power and range are going to be with the 300 win accuracy will be a toss up depending on the shooter and gun. It will be much harder to shoot the 300 accurately because of recoil. Thats why everyone hasn't just purchased a 300 win mag, it kicks like a mule and is more than is needed for deer. Personally if I need more gun than a 308 or 30'06 I am getting a 338 win mag or 375 mag. Most will consider the 300 win mag a little light for grizzly bears and similar sized dangerous animals. So what it really comes down to is do you want to pay $40 a box for shells and endure double the recoil so you can shoot elk and moose at 500 yards(where most hunters will miss as often as they hit)or use the 308 and be limited to 300 on moose and elk. The 308 will still have plenty left to take whitetail deer at 500 yards, but again do you really think you should be shooting that far.