229
INTERNAL STRAINS IN GUN EORGINGS,
Breeoii Slice.
Interior diameter, 4".72; exterior diameter, 10".42. Original diameters of rings in the slice.
Rings.	Diameters.		
	A.	B.	Mean.
1		Inches. 4.8501 5.6520 9.6483 10.2784	Inches. 4.8500 5.6482 9. 6501 10.2679	Inches. 4.85005 5.6501 9.6492 10.27315
2	 3				
4				
			
Rings 1 and 4 detached; rings 2 and 3 in the slice.
Rings.	Diameters.		
	A.	B.	Mean.
	Inches.	Inches.	Inches.
1 detached		4.8547	4.8550	4.85485
2		5.6508	5.6474	5.6491
3		9.6476	9.6496	9.6486
4 detached		10.2847	10.2602	10.27245
RINGS ALL DETACHED.
2 detached			5.6549	5.6518	5.65335
3 detached		9.6464	9.6412	9.6438
Breech strains released.
Rings.	Diameters.		
	A.	B.	Mean.
	Inch. + .0046 -.0012 -.0007 + .0063	Inch. + .0050 -.0008 -.0005 -.0077	Inch. + .0048 -.0010 -.0006 -.0007
2 				
3 				
			
			
RINGS ALL DETACHED.
2 detached		+.0041	+ .0044	+ .00425
3 detached		-.0012	-. 0084	-.0048
FIRST TO THIRD PHASE.
	+ .0029	+.0036	+ .00325
	-.0019	-. 0089	-.0054