301
INTERNAL STRAINS IN GUN FORGINGS.
Muzzle Slice.
Interior diameter, 4". 17; exterior diameter, 8".62. Original diameters of rings in the slice.
Rings.	Diameters.		
	A.	B.	Mean.
1	1		Inches. 4.3275 5.1493 7.1438 8.2796	Inches. 4.3269 5.1494 7.1450 8.2775	Inches. 4.3272 5.14935 7.1444 8.27855
2				
3				
4				
			
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Kings.	Diameters.		
	A.	B.	Mean.
1 detached		Inches. 4.3288 5.1485 7.1433 8.2838	Inches.	Inches.
2				
3				
4 detached			8.2669	
			
BINGS ALL DETACHED.
! 2 detached		5.1507	5.1499	5.1503
1 3 detached	 1	7.1421	7.1412	7.14165
Muzzle strains released.
Rings.		Diameters.	
	A.	B.	Mean.
1 detached		Inch.		
	+.0013	+ .0061	+.0037
	-.0008	-.0004	-.0006
3 in slice		-.0005	-.0005	—.0005
4 detached		+ .0042	-.0106	-.0032
SECOND TO THIRD PHASE.
2 detached		+ .0022		
3 detached				
			
FIRST TO THIRD PHASE.
2 detached				
3׳ detached		1	-. 0038	-.00275