Trip 285 of 3900 collection book26
The old pounder shot required for its discharge sixteenbook71 pounds of powder. The Armstrong cannon employs only seventyfive pounds of powder for a projectile of eight hundred pounds and the Rodman Columbiad uses only one hundred and sixty pounds of powder to send its half ton shot a distance of six miles. As well take a pistol. Perfectly correct said Morgan but before deciding the quantity of powder necessary to give the impulse I think it would be as well We shall have to employ a largegrained powder continued the major its combustion is more rapid than that of the small.... read all
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