It really depends what level of detail is available for your area, and there is no obvious method to determining it. I'm lucky, both my hunting areas in NS and in SK, despite being very remote, have the super-zoom level of detail (as my Dad incredulously remarked, "you can count the bales in the field"). This is great. A few miles in away it's not zoomed in like that and next to useless for hunting purposes.
Download it and find out...or better yet go over to a friend's house who has it downloaded and see what level of detail is available for your area.
I down loaded it and it is nice to see kind of an overview of my hunting area, but it don't zoom in close enough to really see much or be a whole lot of good. Cant hardly tell the diff. between hardwood and softwood, just kind of go by lighter being hardwoods and darker being softwoods:](*,) grrrrr..... now what ....lol
Others have offered up a sighting of roughly 2 inches high at 100 yards as a good sighting scheme. In my own experience I have come to favor a sighting of 3.5 inches high at 100 yards. This allows for the individual to hold dead-on (directly in the middle of the top and bottom) the animal out to roughly 350 yards.
Magnum calibers such as the 7mm Remington and 300 Winchester will extend this slightly. At 400 yards I hold directly on the backbone of the animal. The drop at this range allows the...