The title really says it all....If you didn't know whether a 180lb whitetail was going to step out at 100 yards or 1000 yards from your position, and you were using a 30cal with the capabilities of a hot 300RUM or 30-338 weatherby. What bullet would you want to be sending down range...something that would still perform well on the 1000 yard buck, but wouldn't grenade the 100 yard buck...because a bloodshot mess is no fun to clean and messy to put on the BBQ.
One other factor to consider, a higher BC is always better in windy (gusty) country.
One other factor to consider, a higher BC is always better in windy (gusty) country.