The 4.2 grains of N320 performed the best of the 3.9-4.3 ladder overall. I still don\’t get the grouping consistency of the factory 124 Federal HSTs. However, the federal feels like a much hotter round than the N320 loads. I\’m not seeing any concerning pressure signs and I think I will tinker with the overall length a bit to see if I can tighten the groups some more.