I have a 24” proof sendero 7PRC. I’ve wasted to much barrel life trying to get both the 160CX and the 168LRX to shoot consistent groups and have given up. I’ve tried multiple primers and powders. The good groups could never repeat during the next range session. I do have about a 1moa load with both bullets. I think they are both using H1000 but I don’t have that info right now.
The same rifle shoots the 184 bergers .3 moa every range session in front of a stout load of N570. So that is all that rifle will shoot from now on. The 184 had a bang flop at 375yds on a muley this year. But I haven’t had an opportunity past that.
H1000, H4831sc, Retumbo, N570, 565 and 560 are all good powders
