267
INTERNAL STRAINS IN GUN FORGINGS,
Muzzle Slice.
Interior diameter, 4".16; exterior diameter, 8".52. Original diameters of rings in the slice.
Rings.	Diameters.		
	C.	D.	Mean.
	Inches. 4.8058 5.1550 7.1496 8.8368	Inches. 4.3045 5.1546 7.1475 8.3409	Inches. 4.30515 5.1548 7.14855 8.33885
			
			
			
			
Kings 1 and 4 detached; rings 2 and 3 in the slice.			
Rings. •	Diameters.		
	C.	D.	Mean.
	Inches. 4.3122 5.1543 7.1492 8.3260	Biches. 4.3109 5.1533 7.1466 8.3360	Inches. 4.31155 5.1538 7.1479 8.3310
			
			
			
			
RINGS ALL DETACHED.			
	5.1576 7.1457	5.1557 7.1440	5.15665 7.14485
			
Muzzle strains released.			
Rings.	Diameters.		
	C.	D.	Mean.
	Inch. + .0064 -.0007 -.0004 -.0108	Inch. + .0064 -. 0013 -.0009 -.0049	Inch. +.0064 -.0010 -.00065 -.00785
			
			
			
			
SECOND TO THIRD PHASE.			
	+ .0033 -.0035	+ .0024 -.0026	+.00285 -.00305
			
			
FIRST TO THIRD PHASE.			
	+.0026 -.0039	+ .0011 -.0035	+ .00185 -.0037