One thing I like about the '06: For bullets of 150 to 180 grains, there's not much difference in trajectory to 300 yards, and it doesn't really matter whether they're boat-tailed or flat-based.
Sight in for two inches high at 100, and you're right at dead-on at 200. That takes care of probably 90% of all deer and elk hunting. Out at 300, the drop is gonna be six to seven inches; how do you tell the difference?
Unless you're really "all married up" to your rifle, you most likely shouldn't be going beyond 300 yards, anyway.
Art