245
INTERNAL STRAINS IN GUN FORGINGS,
Breech Slice.
Interior diameter, 4".77; exterior diameter, 10".42. Original diameters of rings in the slice.
Rings.	Diameters.		
	A.	B.	Mean.
I		Inches. 4.9320 5.6521 9.6483 10.2769	Inches. 4.9330 5.6470 9.6439 10.2750	Inches. 4.9325 5.64955 9.6461 10.27595
2				
3			
4				
			
Kings 1 and 4 detached; rings 2 and 3 in the slice.
Diameters.		
A.	B.	Mean.
Inches. 4.9371 5.6507 9.6470 10.2767	Inches. 4.9398 5.6460 9.6431 10.2669	Inches. 4.93845 5.64835 9.64505 10.2718
Kings.
1	detached
2	......
3	......
4	detached
RINGS ALL DETACHED.
5.6543 !	5.6475	5.6509
9.6460	9.6396	9.6428
2	detached
3	detached
Breech strains released.
Kings.	Diameters.		
	A.	B.	Mean.
1 detached		Inch. + .0051 -.0014 -.0013 -.0002	Inch. +.0068 -.0010 -.0008 -.0081	Inch. + .00595 -.0012 -.00105 -.00415
2 in slice				
3 in slice				
4 detached				
			
SECOND TO THIRD PHASE.
2 detached		+.0036 -.0010		
3 ietached			—!0035	
			
FIRST TO THIRD PHASE.
2 detached		+.0022 -.0023		
3 detached			-.0043	-.0033