.375 H&H & IMR4831

[aj113]

Good evening all. I have a reasonably accurate load worked up for my .375 with 300 grain Accubonds and IMR4831. I tried several powders that are more temperature stable according to the burn charts, but the rifle just doesn't seem to like them as well (H4350, IMR4350, IMR4064). Accuracy and chronograph numbers are much better with IMR4831. Does anyone have any real world feedback on whether the IMR4831 causes any issues in hot temps? It was sub 30 degrees today when I was shooting, and it won't be hot enough here for me to test the temperature sensitivity for another 5 months.