Zen:
Here's a link to Remington where you can download free ballistic software that will tell you theoretically where you should be hitting at various yardages with a different yard zero in ranges.
http://www.remington.com/ammo/ballistics/ballistics.htm
I've downloaded the software and it tells me the following with a 100 yard zero:
25 yds, the bullet is -.77 inches (low) if zero'd at 100 yards
50 yds is -.27
75 yds is 0
125 yds is -.28
150 yds is -.87
175 yds is -1.78
200 yds is -3.05
250 yds is -6.84
You can also set the software for a 20 yard zero. In that case it says the bullet will it 4.5 high at 100 yards.
Hope this helps, checkout the free software at Remington. It's pretty cool.