Just about any of the good 7mm Rem Mag powders will get 3100+ out of a 140. RL19, RL22, RL25, RL26, Magpro, H4831, H4350, and so on. I am using RL26 in my 7mm WSM with the 140 Partitions and get 3250 from them without drama. Your's will do it even easier.
