| Show range gun fires fire steel balls ball A range gun to be used in teaching gun laying and pointing poin tings has been invented by capt K E II 11 stillman assistant professor of military science and tactics at the university of california says popular Alec mechanics hanics magazine the gun a wooden affair worked by a spring fires quarter inch stool steel bearing balls the spring tension Is so adjusted that one inch on the range used equals fifty yards the steel projectiles jec tiles fall on a sand table eight by fourteen feet in size and tiny bursts of sand mark the shell liell puts small wooden model battleships are arc used for targets on oil ranges equivalent to yards |
