INTERNAL STRAINS IN GUN FORGINGS, 320 Tube 11794 B5. Muzzle Slice. State of internal strains and stresses at different phases of the slice. SLICE INTACT. Interior diameter of slice, 4".27: exterior diameter of slice. 8".53. Rings. Present mean diameters. Strains. Stresses per square inch. Tension. Compres- sion. Tension. Compres- sion. 1. Inches. 4.30715 5.1409 7.1489 8.34595 Inch. Inch. . 00605 .00085 Pounds. Pounds. 42,100 5,000 2 3 . 00345 14,500 4 .00065 2,300 Rings 1 and 4 detached; rings 2 and 3 in the slice. Interior diameter of the slice, 5"; exterior diameter of the slice, 7".3. Rings. Present mean diameters. Strains. Stresses per square inch. Tension. Compres- sion. Tensioft. Compres- sion. Inches. 4.3132 5.1398 7.14815 8.3466 Inch. Inch. Pounds. Pounds. 2 . 00195 11,400 3 .0027 11,300 RINGS ALL DETACHED. 5.14175 7.14545 1