I have an older model 300wby vanguard that I’ve customized and wanting to get a new barrel soon. The load I’ve worked up and am use to is 150grain Nosler Accubond that travels in the realm of 3,400fps. I’ve been doing a lot of research and reading other posts in here, but only find recommendations for larger bullets. I’m wanting to go with 26-28” barrel, but clueless as to what twist. Can you guys school me on the differences in twist and barrel length please? Your help and advice is greatly appreciated!