Finally got to try some 150TTSX loads out last week. The best accuracy was 77.6gr H4831sc and 72gr R17. I'm using Jagmann new brass, which is pretty thick brass. Can't get listed Max, but not to worry. Since the range filled up early, I couldn't set up my chronograph. However, the H4831sc went 3 shots into a nice .5" avg and the R17 went into the 3's, actually cut each other! Nice to have a "bonafide varmint rifle" to shoot a big target with! ha.
How far off the lands? I like the Barnes bullets, but I can not find the accuracy.
Any tips?
I've tried H4350, Imr4350 and now playing with R17, decent accuracy but room for improvement.
