RECOIL MECHANISM---15-POUNDER GUN NO. 12. 195 (run rotated, put back into first position, bottom side up. On point J, over front end of piston rod. Applied loads. Gauge readings. Remarks. Direct movement. Set. Pounds. Inch. 1,000 0. 10,000 .0077 20,000 .0143 30,000 .0202 40,000 .0253 50, 000 .0300 60,000 .0347 .0038 On point K. over rear end of piston rod. 1,000 0. 10,000 .0072 20,000 .0120 30,000 . 0176 40,000 .0244 50,000 .0312 60,000 .0384 —. 0014 On point I, over rear end of cylinder. 1,000 0. 10,000 .0056 20,000 .0111 30,000 .0168 40,000 .0225 50,000 .0281 60,000 .0338 -.0004 On point H, over rear end of lug of sleeve. 1,000 0. — 10,000 .0018 20,000 .0034 30,000 .0055 40,000 .0073 50,000 .0091 60,000 .0110 50,000 .0110 40,000 .0109 30,000 .0108 20,000 .0090 10,000 .0049 0. On point G, over front end of lug of sleeve. 1,000 0. — 10,000 -.0005 20,000 -.0008 30,000 -.0013 40,000 -.0021 50,000 -.0026 60,000 -.0030 0.