If you are going to be shooting out to 600+ yards then I would suggest using your 300WM. I use a 308 as a backup gun or for Dark Timber where I plan on having shots under 300 yards. I use 180g NP in my 308 and 200g AB's in my 300 WM. I would use NP's in both but my 300 doesn't shoot the NP's as well as the AB's and visa-versa for the 308. Just shoot your bullet of choice in both rifles and see which bullet performs the best in both rifles. (If you don't what to take two different rounds.) Good luck on your hunt.
