I zero my .270's to be +4@100which makes them+4 @ 200, and -3 @ 300. But this zero is for use in the mountains of New Mexico and Colorado, where shots can be from 30 yards to 400 or so.

For your uses, I would zero dead on at 200 yards. Then your maximum POI height above the line of sight will never be more than 2" all the way from 25 yards out to 250 yards or so. This means on deer-size game you can aim right at the spot you want the bullet to strike out to 250 yards.....

Regardless of where your bullet strikes at 25 or 50 yards, ALWAYS shoot confirming shots at as far a distance as you have at your range, (200 or 300 yards)because a point of impact that seems right on close in, especially for windage,can be several inches or more off to the right or left, and at the short ranges this deflection will not show up!

The .270 is one of the great cartridges! Good luck!