barnes 100 ttsx

  1. SofaKing

    257 Weatherby Mag w/ MRP or MagPro

    Looking to recreate the factory weatherby loads. I’ve got some once fired wby brass and Barnes ttsx 100’s. What’s the coal length on the factory loads? I’m fairly sure weatherby uses its own blend of powder but with what I have maybe I can get close. Available powders are: magpro, norma mrp...