I have loaded the 7x57 for a long time. With 140BT's I use RL19 for about 2900fps(a Nosler load). With the 150BT I use again RL19,IMR 4350, and H4831SC. All go around 2800+ which is by far the best overall load in a 7. The 140's, 150's and the Nosler 160's for hard heads are hard to beat for all game up to and including elk and moose. powdr
