I've got the McMillan stocked version in 28 Nosler. First load was 180 eld at 3200 with reloder 33, too temp sensitive for my liking. Switched over to h1000 and 180 Berger hybrids @ 3100. Stays sub minute out to 1100. I did swap out the factory brake for a Ti side port brake from Mesa Precision Arms, I can spot my own hits now.