Show Some new fiftycaliber fiveInch guns designed for tho DQnver class of cruisers were tested1 at Indian Head the dther day with smokeless powder and the results were astounding and most satisfactory A sixtypound projectile pro-jectile propelled by twentysix pounds of smokeless powder attained a velocity veloci-ty of 3000 footseconds and developed a muzzle energy of 3724 foottqns I Is said that this would drive a shot through five Inches of Krupp armor at a distance of 2000 yards over a mile And this seems to be American powder The French thought they had the best powder Then the English En-glish made what the call cordite but It has not proved satisfactory in South Africa Our authorities Have persist ently instituted cxpqrlmcnts commercial commer-cial firms have been encouraged to compete and as a consequence our batteries are served with n smokeless powder that gives ballistic power and quick and clean tIring This powder keeps so well that samples stored In ships magazines for two years show no signof deterioration and Us effect upon the gun too Is so slight that in 0 test case C66 shots were fired from a fiveInch gun without causing any wear or erosion that could be discovered cision discov-ered by tho usda Implements of pre |