I've shot moose @ 400yards with a 180grain out of my .308.
It did the job fine.
The 06 will do the same if not more.
At 800 yards, your 180gr is still supersonic @ 1220fps retaining around 600ft/lbs of energy. (Should this be done?? At that range, you can probably get a lot closer to the animal)
I'd recommend getting within 500 yards. At that point, you're over 1600fps and 1100ft/lbs energy.
It did the job fine.
The 06 will do the same if not more.
At 800 yards, your 180gr is still supersonic @ 1220fps retaining around 600ft/lbs of energy. (Should this be done?? At that range, you can probably get a lot closer to the animal)
I'd recommend getting within 500 yards. At that point, you're over 1600fps and 1100ft/lbs energy.