Show miniature cannons save big shell expense 4 7 77 kr g g V X iz 4 I 1 L tl I 1 4 U ra 1 7 V MT gyal na wn V I 1 ai 7 14 1 Y 1 fg t q we P 1 row how to give practical instruction to artillery officers without incurring the enormous expense of firing big shells has apparently been solved by the united states army officials these thes e minla miniature tur 0 cannons whose range and sight accuracy are scaled down to one hundredth part of the big french allow the same mathematical calculation and target score as their big brothers the cost of firing bring them la Is practically negligible as 22 blanks are used to project a steel bullet at the target the steel projectile can be used over and over major general bishop chief of field artillery worked out the original model |