Load It Up

Currently the most interesting .257 load offered has the Hornady 110-grain ELD-X bullet at 3,400 fps. Weatherby rifles use a 1:10 twist, as do most current .25s. A faster twist would allow the use of even more ballistically efficient bullets but this ELD-X with a G7 BC of 0.234 (G1 BC 0.465) is certainly no slouch and would be my choice of current .257 offerings.

The Mark V has a 26" barrel while the Vanguard sports a 24" barrel. In my rifles the shorter barrel costs about 70 to 80 fps muzzle velocity depending on the load. I consider this inconsequential but it is up to the individual to decide, as is the decision on which model to choose.