BECOIL MECHANISM------15-POUNDER GUN NO. 12.	199
On gauged length P, from left cheek of oscillating slide, abreast trunnion, to fixed block on gun. .
Applied loads.	Gauge readings.		Remarks.
	Direct movement.	Set.	
Pounds.	Inch.	Inch.	
1,000	0.		
10,000	.0187		
20,000	.0373		
30,000	.0545		
40,000	.0712		
50,000	.0879		
60,000	.1038		
50,000	.1038		
40,000	.1029		
30,000	. 1002		
20,000	.0729		
10,000	.0409	0.	
Gun rotated 180°, and into position, bottom side up. On gauged point E, over front end of lug of oscillating slide.
1,000 10,000 20,000 30, 000	0.		
	.0073		
	.0134		
	.0194		
40,000	.0250		
50.000 60.000 50.000	.0302		■Movement takes place from the axis of the gun.
	.0353		
	.0347		
40,000	.0338		
30,000	.0332		
20,000	.0257		
10,000	.0160	.0030	
On gauged point F, over rear end of lug of oscillating slide.
1,000 10,000 20,000 30.000 40.000 50.000 60.000	0. -.0012 -.0027 -.0047 -. 0062 -.0075 -.0090	.0	■Movement is toward axis of gun.
On gauged point G, over front end of lug of sleeve.
1,000	0.		
10,000	.0012		
20,000	.0025		
30,000	.0043		■Movement is toward axis of gun.
40,000	.0058		
50,000	.0072		
60,00©	.0085	.0	
On gauged point H, over rear end of lug of sleeve.
1,000	0.		
10, 000	.0022		
20,000	.0038		
30,000	.0054		
40,000	.0067		
50,000	.0080		■Movement is from axis of gun.
60,000	.0096		
50, 000	.0095		
40.000 30.000 20.000 10,000	.0094		
	.0090		
	.0068		
	.0040	.0001