I'm not sure exactly what you mean by "maximum point blank at 4 inches"
If you mean never more than 4" high or low, you would be much more than a 200 yard zero with a 7mm-08.
The standard 7-08 round is 140 at 2,950fps.
A 139gr Hornady SP with a 4" MBPR, would be at 327 yards according to JBM Ballistics
With that bullet, 1.5" high at 100 would give you a 200 yard zero and 4" low at 278.
Still happily answering to the call-sign Peetza.
The problem, as you so eloquently put it, is choice.
He is no fool who gives what he can not keep to gain what he can not lose.
-Jim Eliott, paraphrasing Philip Henry.