So I've been shooting Shooter's World ( A.P.P.) 3f powder for a year now getting fair groups out to 50 yards but no hits on paper at 100. So today I drug out the chronograph and found some answers. 75 grains with patched ball gave me 850 to 1050 fps. What!!!!????? So I get out the T-7. 1600 fps with low E.S. I tried 300 gr. REAL bullets with 90 grs A.P.P. Same erratic disappointment. I found that 130 grains of unAmerican pioneer couldn't come close to 90 of T-7. Time to get some holy black!