load development

Has anyone noticed any difference in performance on game between the long range AB and the original Accubond? Going to be using a 280ai. 26” tube. Also any load data or advice would be helpful this is my first 280ai. Deer, coyotes are the game here 400-500 yards max. Thank you.

I'm shooting a 300 WSM Ridgeline and I'm trying RL17 with LRX 175's. I seated the bullets so they were .05 off the lands. I did a round robin session today at the range and got results that I cannot figure out. I have used round robin with several other powders and bullets and was able to find...