Why are you zeroing the scope at 100 yds with a flat shooting cartridge like the 257 Wby? I have the same scope on my .222 Rem Sako L461. It is pushing a 50gr bullet at a leisurely 3000fps so with a 200 yds zero it is about 2.25" high at 100yds. I was able to make first shot kills out to 410 yds on targets smaller than a water bottle using the LRVD reticle. There were misses due to wind, but the elevation was always were it should be. You have to understand the trajectory at long range. No BDC reticle is going to have a dot where you need it at every range. There is going to have to be hold over/under from the dots. If you aren't comfortable with that get a duplex reticle and twist the dial for elevation or zero at 200yds and you will be +/- 2" of zero out to 250 yds. If you zero for 300 yds you are max high of 3" at 175 yds and 7.3 low at 400. You could damn near hold center out to 400.
