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AUTOMATIC PISTOL, CAL..45, M1911 AND M1911A1 (3) Velocity with, striking energy. 2-3 Range Yards 0 25 50 75 100 125 Velocity Fed per second 802 788 773 758 744 730 Energy Foot- pounds 329 317 305 294 283 272 Range Yards 150 175 200 225 25O Velocity Feet per second 717 704 691 678 666 Energy Foot- pounds 262 253 244 235 226 (4) Penetration in white pine. Range Yards 25 50 75 100 Depth Inches 6.0 5.8 5.6 5.5 Range Yard s 150 200 250 Depth Inches 5.2 4.6 4.0 A penetration of 1 inch in white pine corresponds to a dan- gerous wound. The penetration in moist loam at 25 yards is about 10 inches. The penetration in dry sand at 25 yards is about 8 inches. (5) Trajectory.–The elevation required for 100 yards is 24′ and for 200 yards about 1 ° . The elevation for 250 yards is about 1 ° 13′; the maximum ordinate being approxi- mately 130 yards distance from the muzzle and about 51 inches in height. The maximum range is approximately 1,600 yards at an angle of elevation of 30″. The maximum ordinate for the maximum range is approximately 2,000 feet. SECTION II DISASSEMBLING AND ASSEMBLING • 3. DISASSEMBLING (see fig. 3).–a. Remove the magazine by pressing the magazine catch. b. Press the recoil spring plug inward and turn the barrel bushing to the right until the recoil spring plug and the end 223906″–40- 2

M1911 Manual - Page 9

M1911 Manual - Page 9

 


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