277
INTERNAL STRAINS IN GUN FORGINGS,
Muzzle Slice.
Interior diameter, 419.״; exterior diameter, 8".57. Original diameters of rings in the slice.
Rings.	Diameters.		
	A.	B.	Mean.
1 		Inches. 4.3594 5.1492 7.1485 8.1155	Inches. 4.3553 5.1361 7.1470 8.1125	Inches. 4.35735 5.14265 7.14775 8.1140
2				
3				
4				
			
Rings 1 and 4 detached; rings 2 and 8 in the slice.
Diameters.		
A.	B.	Mean.
Inches. 4.3645 5.1483 7.1481 8.1194	Inches. 4.3614 5.1361 7.1472 8.0964	Inches. 4;36295 5.1422 7.14765 8.1079
Rings.
1	detached
2	......
3	......
4	detached
RINGS ALL DETACHED.
5.1388	5.14465
7.1434	7.1442
5.1505 7.1450
2	detached
3	detached
Muzzle strains released.
Diameters.		
A.	B.	Mean.
Inch. +.0051 -.0009 -.0004 + .0039	Inch. +.0061 .0000 +.0002 -.0161	Inch. + .0056 -.00045 -.0001 -.0061
Rings.
1	detached
2	in slice ..
3	in slice ..
4	detached
SECOND TO THIRD PHASE.
2 detached			+.0022	+.0027	+ .00245
3 detached		-.0031	-.0038	-.00345
FIRST TO THIRD PHASE.
2 detached		+.0013 -.0035		
3 detached				<w>rr