A .22 Caliber pistol can be made from 1/8 in. nominal diameter extra heavy, steel gas or water pipe and fittings. Lethal range is approximately 33 yards (30 meters).
- Steel pipe, extra heavy, 1/8 in. (3 mm) nominal diameter and 6 in. (15 cm) long with threaded ends (nipple)
- Solid pipe plug, 1/8 in. (3 mm) nominal diameter 2 steel pipe couplings, 1/8 in. (3 mm) nominal diameter
- Metal strap, approximately 1/8 in. x 1/4 in. x 5 in. (3 mm x 6 mm x 125 mm or 12-1/2 cm)
- Elastic bands
- Flat head nail - 6D or 8D (approxi¬mately 1/16 in. (1-1/2 mm) diameter 2 wood screws, #8
- Hard wood, 8 in. x 5 in. x 1 in. (20 cm x 12-1/2 cm x 2-1/2 cm)
- Wood or metal rod, 1/8 in. (3 mm) diameter and 8 in. (20 cm) long
- Saw or knife
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 diameter.
2. Drill a 15/64 in. (1/2 cm) diameter hole 9/16 in. (1-1/2 cm) deep in pipe for long cartridge. (If a short cartridge is used, drill hole 3/8 in. (1 cm) deep). When a cartridge is inserted into the pipe, the shoulder of the case should butt against the end of the pipe.
3. Screw the coupling onto the pipe. Cut coupling length to allow pipe plug to thread in pipe flush against the cartridge case.
4. Drill a hole off center of the pipe plug just large enough for the nail to fit through.
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 in. (1-1/2 mm) away from plug. Round off end with file.
6. Follow procedures of Section HI, No. 1, steps 6 through 11.
7. Follow SAFETY CHECK, Section III, No. 1.
HOW TO OPERATE:
Follow procedures of HOW TO OPERATE PISTOL, Section III, No. 1, steps 1, 2, and 3.