Finally made it to the range. Had some interesting results. None of the loads showed any pressure signs, primers were fine, easy extraction. Results were as follows. RL19- 47.5gr 2920fps. 48.0gr 2983fps. 48.5gr 2997fps. 49.0gr 3024fps. 49.5gr 3067fps. H4831- 46.0gr 2866fps. 46.5gr 2901fps. 47.0gr 2926fps. 47.5gr 2933fps. 48.0gr 2983fps. IMR4350- 42.5gr 2825. 43.0gr 2844fps. 43.5gr 2883fps. 44.0gr 2922fps. 44.5gr 2933fps. What I found interesting was that 48gr of RL19 and 48gr of H4831 had the same exact velocity (granted it was one shot with each). The thing that I found the most interesting was that 12 of the 15 shots went into a 1.050” group, that’s 12 shots no two rounds the same, all different charge weights and powders. I feel like load development for this one is going to be a breeze.


JTD