I am working with winchester m70 classic in 300WSM w/24" barrel. once fired nickel winchester brass, rem 9.5 primers Berger 185VLD Hunting bullets set at OAV 2.950. I see most manuals putting max load in the high 60g area ,, I worked up a load that has 70g of H4831sc . I am no expert but see no pressure issues . The primer shows no sign of flattening. Worked up a grain at a time from 60g all the way to 73 g with no primer flattening. I also shot factory load, win xpc3 180g , same day and that load flattened primer. I really want to use the 70g for Elk and that gets my Entergy around 1500 ftlbs out to 600 yds. The load also shoots 1/2 inch groups. Any thoughts?..