Reloading 308 240 grain sierra match king bullets
I'm looking for information on where to find what powder and load data for a 240 grain sierra match king bullet. I usually load 168 or 175 grain bullets and have the data for them from my manuals. A friend wants to load 240 grain bullets and I can not find any load data for these heavy bullets. I did see these bullets must have a 1 in 9 twist barrel. I told him I would see if I can find some kind of data or if anyone has ever loaded any of these. Any suggestions? Besides bigger isn't always better. Thanks.