Finally made it to the range. Still unable to locate any RL15. Had to settle for RL19. Used Fed cases, WLRM, Barnes 185gr TSX. Had to use the Nosler #5 Manual which says 78gr max for 3120fps with 180gr and Barnes #3 manual which only lists RL19 for the 185 XLC (81gr). I settled on a load before I reached 78gr with the TSX. 78gr was causing sticky bolt lift. I was getting over 3100fps, but today was hotter than expected. There are no pressure signs that I can detect.
My smallest 3 shot group was 0.772" and my average was 1.045". My last group brought my average up, but my shooting technique was wearing down by then. (This rifle routinely shot 0.87" groups with the Winchester failsafes.)
Sighted 3.5" high at 100yd, I will be dead on at 300yd and only 10" low at 400yd. I think my load is ready to go!
I will post pictures if I should get to use it on prairie elk.
