TM 31-210
Improvised Munitions Handbook
| Section III |
No. 10 |
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PIPE PISTOL FOR .22 CALIBER AMMUNITION LONG OR SHORT CARTRIDGE |
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| A .22 Caliber pistol can be made from 1/8" nominal diameter extra heavy, steel gas or water pipe and fittings. Lethal range is approximately 33 yards (30 meters). | |
| MATERIALS REQUIRED: | |
| Steel pipe, extra heavy, 1/8" (3 mm) nominal diameter and 6" (15 cm) long with threaded ends (nipple) |
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| Solid pipe plug, 1/8" (3 mm) nominal diameter 2 steel pipe couplings, 1/8" (3 mm) nominal diameter |
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| Metal strap, approximately 1/8" x 1/4" x 5" (3 mm x 6 mm x 125 mm or 12-1/2 cm) | |
| Elastic bands | |
| Flat head nail - 6D or 8D (approximately 1/16" (1-1/2 mm) diameter | |
| 2 wood screws, #8 | |
| Hard wood, 8" x 5" x 1" (20 cm x 12-1/2 cm x 2-1/2 cm) | |
| Drill | |
| Wood or metal rod, 1/8" (3 mm) diameter and 8" (20 cm) long | |
| Saw or knife | |
| PROCEDURE: | |
| 1. Carefully inspect pipe and fittings. | |
| a. Make sure that there are NO cracks or other flaws in the pipe or fittings. | |
| b. Check inside diameter of pipe using a .22 caliber cartridge, long or short, as a gauge. The bullet should fit closely into the pipe without forcing, but the cartridge case SHOULD NOT fit into the pipe. | |
| c. Outside diameter of
pipe MUST NOT BE less than 1-1/2 times the bullet dia- meter. |
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| 2. Drill a 15/64" (1/2 cm) diameter hole 9/16" (1-1/2 cm) deep in pipe for long cartridge. (If a short cartridge is used, drill hole 3/8" (1 cm) deep). When a cartridge is inserted into the pipe, the shoulder of the case should butt against the end of the pipe. |
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| 3. Screw the coupling onto the pipe. Cut coupling length to allow pipe plug to thread in pipe flush against the cartridge case. | |
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| 4. Drill a hole off center of the pipe plug just large enough for the nail to fit through. |
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| NOTE: Drilled hole MUST BE OFF CENTER in plug. | |
| 5. Push nail through pipe plug until head of nail is flush with square end. Cut nail off at other end 1/16" (1-1/2 mm) away from plug. Round off end with file. |
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| 6. Follow procedures of Section III, No. 1, steps 6 through 11. | |
| 7. Follow SAFETY CHECK, Section III, No. 1 or No. 9. | |
| HOW TO OPERATE: | |
| Follow procedures of HOW TO OPERATE PISTOL, Section III, No. 1, steps 1, 2, and 3. | |
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