I have a Weatherby Vanguard (not the S2), chambered in 300 Wby. I am interested in upgrading the 24" sporter contour barrel to a 28" sendero contour. I plan on loading Berger 215 or 230's. I just don't know if I can find an accurate load with those bullets while still keeping the coal at 3.560. I am open to switching to 300 win if i could have more potential for an accurate load given my coal limitation. Any suggestions??