I have used IMR4831 but the pressure jumped when I used it at 90 degrees on an antelope hunt so I dc'd it. Same with RL22. You can load H4831 sc E to the max and not have to worry if it is hot outside. The RL15/4895 load is great for youngsters and others who don't like recoil. Good option for those who neither need nor want max vel. That load beats or equals the 257 and 7-08 and has very low recoil. When I was 12 the oldtimers used 4064 with the 130's.
