Show new naval gun the first of the new type of five inch naval guns des ened for cruisers of the denver class was tested at the ind an head proving grounds fr day with very satisfactory results A projectile weigh ng s aty pounds was fired with a powder charge of twenty six pounds the muzzle velocity reached the ex capt on ally h gh figure of feet per second sl owing a muzzle energy of foot tons this is go per cent more muzzle energy than guns of the type have made I 1 heretofore it is sufficient to seven inches of krupp armor at the muzzle and five inches of krupp armor at yards |