My 7mm Wby rebarrel (1-9 faster twist, 26" barrel) REALLY likes H4831 SC with 162-grain ELD-X bullets. RETUMBO is very good with 150-grain Ballistic Tips, too, but not like H4831 SC.
Federal factory loading with 160-grain TBBC nickelled bullets and cases, although with proprietary powder looked like Ramshot MAGNUM with something extra. Tried it with same bullet and got a bit less velocity than factory. By the way, Remington cases hold significantly less powder compared with Federal, Weatherby and Hornady brass.
