Quote:
Originally Posted by Bill Murphy
Herco is way on the slow side for light 12 gauge target loads, but will probably be OK for the 20 except in the dead of winter. Anyone with questions should consult "burning rate charts" for suggestions and information.
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Win.AA hull. 1.125 oz shot, win209 primer, WAA12 wad,25 grs of herco, 1250 fps at 9500 psi. There are more loads and different components for herco. This one is from there web site.
Scott