RL15 under 168gr pill 308win 20in barrel AR10 lc brass cci #200 primers. I chrono'd this pass weekend, here are the results: 44 grains avg. 2583 fps 44.5 grains avg. 2587 fps Do I stop? or keep going? Trying to get atleast 2600fps but it seems like I peaked out? First time using this powder.