Funny, I ready that article last night and was going to post the link today. You beat me to it
. I used the blackmag yesterday, weighing all loads & shot 3 shot groups. I measured ten 90 grain loads and weighed each. By weight they ranged from 93.3 gr to 97 gr, quite a large difference IMHO. I took the average at 95 gr weight and bumped it 5 gr by weight (not exactly the right amount but close enough for starters) up to 110 gr. The 95 and 100 weighed charges were the most accurate, about a 1 1/2 inch group at 100 yds. Heavier loads shot around 2 to 2 1/2 inch groups. I am using the Leupold 3X9 grandslam scope on my Knight LRH & Barnes 285 hollow points. I got similar groups with 89 gr weighed charge of Blackhorn and same bullets. The Blackmag powder was very clean, almost like smokeless with very little residue. I am sold on weighing the charges, Blackhorn or BlackMag for the best accuracy. As for the Power Belts, who knows? I haven't tried them due to what I've read about them on the web by many users. I may have to give them a try. The Barnes bullets are bears to get down the Omega AND the Knight but have always given me the best accuracy. My next try will be the PBs with the same loads. Will report the results.