273
INTERNAL STRAINS IN G-ITN FORGINGS,
Muzzle Slice.
Interior diameter, 4".24; exterior diameter, 8". 57. Original diameters of rings in the slice.
Rings.	Diameters.		
	A.	B.	Mean.
1		Inches.	Inches.	Inches.
2		5.1556		4. oo/ ¿.o
3				
4				
			
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Diameters.		
A.	B.	Mean.
Inches.	Inches.	Inches.
4.3917	4.3903	4.3910
5.1551	5.1564	5.15575
7.1530	7.1551	7.15405
8.3544	8.3815	8.36795
Rings.
1	detached
2	........
3	...;....
4	detached
RINGS ALL DETACHED.
2 detached		5.1575 7.1514		
3 detached				
			
Muzzle strains released.
Rings.	Diameters.		
	A.	B.	Mean.
1 detached		Inch.	Inch.	Inch.
2 in slice				
3 in slice		-.0002 -.0108		
4 detached					
			
SECOND TO THIRD PHASE.
2 detached				
3 detached		-.0016		
			
FIRST TO THIRD PHASE.
	+.0019 -.0018		+ .0018
			
			
H. Doc. 508----18