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100 grains of Blackhorn 209 Powder Powerbelt AeroLite 250 grain: Average group size = 1.00″ (Mean M.V. = 2,015 f.p.s.) Harvester 260 grain Scorpion PT Gold: Average group size = 1.00″ (Mean M.V. = 1,965 f.p.s.) 100 grains of Alliant Black MZ Powerbelt Aer