Wanting to develop a practice load to improve my ability to read wind under 400 meters for an FTR match this spring. The components I have available for this are, 308 Win brass, Remmy 9 1/2 primers, RL 15 , Hornady 150 gr fmj . The load data varies from 46 to 49 grains depending on the data publisher. Has anyone assembled these components? What I want is your accuracy load and when did the loads become hot. Is RL 15 an erratic burning powder particularly when the loads approach being a hot load?