I agree with Pygmy, 3" high at 100yds with most 300WM bullets is a great set up. It looks something like this:

50 yds - 1.25" high
100 yds - 3" high
150 yds - 3.5" high
200 yds - 2.5" high
250 yds - zero
300 yds - 3.5" low

A quick fix is to adjust your scope up 10 clicks and check it at the range. That adjustment should change your gun from zeroed at 50 yds to 1.25" high at 50 yds. Then it's pretty much "point and shoot" from 0-300 yds. Good luck