I've never understood the facination with shooting 100 gr. bullets in the 257 Wby .My Mark V Fibermark shoots the 120 gr. NP into MOA or better groups , and [more importantly IMHO] after bedding in the factory stock , the first shot from a cold, fouled barrel is in the group .

This is with a load of IMR 7828 right out of the Nosler book .68 gr. gets me right at 3400 fps .

Never holler whoa or look back in a tight place