INTERNAL STRAINS IN GUN FORGINGS, 248 Tube 11363 B3. Breech Slice. State of internal strains and stresses at different phases of the slice. SLICE INTACT. Interior diameter of slice, 4".79; exterior diameter of slice, 10".42. Rings. Present mean diameters. Strains. Stresses per square inch. Tension. Compression. • Tension. Compres- sion. Inches. 4.92615 5.6493 9.6457 10.27855 Inch. Inch. .0059 .00225 Pounds. Pounds. 35.900 11.900 2 3. .00385 .0024 11,600 7,000 4 Rings 1 and 4 detached; rings 2 and 3 in the slice. Interior diameter of slice, 5". 5; exterior diameter of slice, 9".8. Rings. Present mean diameters. Strains. Stresses per square inch. Tension. Compres- sion. Tension. Compres- sion. Inches. 4.93205 5.64775 9.6447 10.27615 Inch. Inch. Pounds. Pounds. 2 .0038 30,200 . 00285 8,900 RINGS ALL DETACHED. 5.65155 9.64185