313
INTERNAL STRAINS IN GUN EORGINGS,
Muzzle Slice.
Interior diameter, 4".29; exterior diameter, 8".50. Original diameters of rings in the slice.
Rings.	Diameters.		
	A.	B.	Mean.
	Inches. 4.4655 5.1439 7.1494 8.3020	Inches. 4.4565 5.1480 7.1596 8.2956	Inches. 4.4610 5.14595 7.1545 8.2988
			
			
			
			
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Rings.	Diameters.		
	A.	B.	Mean.
	Inches.	Inches.	Inches.
	4.4716	4.4630	4.4673
	5.1433	5.1480	5.14565
	7.1489	7.1598	7.15435
4 detached	- —	8.3043	8.2902	8.29725
RINGS ALL DETACHE».
	5.1502	5.1473	5.14875 I
3 detached	 		7.1442	7.1551	7.14965 !
Muzzle strains released.
Rings.	Diameters.		
	A.	B.	Mean.
	Inch. +.0061 -.0006 -.0005 + .0023	Inch. +.0065 .0000 +.0002 -.0054	Inch. +.0063 -.0003 -.00015 -.00155
			
			
			
			
SECOND TO THIRD PHASE.
2	detached	 3	detached		+.0069 -.0047	-.0007 -.0047	+ .0031 I -.0047
FIRST TO THIRD PHASE.
	+.0063	-.0007	+ .0028 1
3 detached		-.0052	-.0045	-.00485 1