If the rifle has a removable bolt (as in bolt action), and a scope, I pass on the 25-50 yard sight in exercise entirely.
With a steady rest, I can usually bore sight any rifle to be on paper, and close to center, at 100 yards, with the first shot.
Saves on ammo.
However- just for grins, I entered my favorite .257 Wby. Mag. load, a 100 gr. Barnes TSX bullet at 3700 fps, altitude 5000'.
At a zero POI at 25 yards, the bullet crosses the line of sight again at 389 yards. Maximum rise above bore is 5.61" at 225 yards.
It is 3.51" at 100 yards. I guess if you are planning on doing some real long range shooting, the 25 yard zero ain't so far off!!
Last edited by Bighorn; 01/02/10.
