223
INTERNAL STRAINS IN GUN FORGINGS
Muzzle Slice.
Interior diameter, 4".20; exterior diameter, 8".52. Original diameters of rings in the slice.
Diameters.		
A.	B.	Mean.
Inches. 4.3450 5.1479 7.1545 8.3604	Inches. 4.3452 5.1467 7.1344 8.3637	Inches. 4.3451 5.1473 7.14445 8.36205
Bings 1 and 4 detached; rings 2 and 3 in the slice.
Rings.	Diameters.		
	A.	B.	Mean.
1 detached		Inches. 4.3511 5.1470 7.1541 8.3514	Inches. 4.3533 5.1450 7.1333 8.3677	Inches. 4.3522 5.1460 7.1437 8.35955
2				
3				
4 detached				
			
RINGS ALL DETACHED.
2 detached		5.1504 7.1509	5.1490	
3 detached				
			
Muzzle strains released.
Rings.	Diameters.		
	A.	B.	Mean.
1 detached		Inch. +.0061 -.0009 -.0004 -.0090	Inch. + .0081 -.0017 -.0011 +.0040	Inch. + .0071 -.0013 -.00075» -.0025
2 in slice				
3 in slice				
4 detached				
			
SECOND TO THIRD PHASE.
2	detached	 3	detached		+.0034 -.0032	+.0040 -.0043	+.0037 -.00375
FIRST TO THIRD PHASE.			
2 detached		+ .0025	+ .0023	+.0024
3 detached			-.0036	-.0054	-.0045