332	INTERNAL STRAINS IN GUN FORGINGS.
Tube 12485 B7 BI.
Breech Slice.
State of internal strains and stresses at different phases of the slice.
SLICE INTACT.
Interior diameter of slice, 4".76; exterior diameter of slice, 10".41.
3 4
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
1		Inches. 4.90375 5.64935 9.65175 10.2799	Inch.	Inch. .0048 .00275	Pounds.	Pounds. 29,300 14,600
2						
3			.0040 .0039		o o o o	
4						
					
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Interior diameter of slice, 5".50; exterior diameter of slice, 9".80.
3 4
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
1 detached		Inches. 4.90855 5.6481 9.65105 10.2760	Inch.	Inch.	Pounds.	Pounds.
2				.0040		21,200
3			.0033		10,300	
4 detached						
					
RINGS ALL DETACHED.
2 detached		5.6521 9.64775				
3 detached