TM 31-210 - Improvised Munitions Handbook - Section IV

MATERIALS REQUIRED:

Standard 12 gauge or improvised shotgun (Section III, No. 2)
Improvised fire bottle (Section V, No. 1)
Tin Can, about 4 in. (10 cm) in diameter and 5-1/2 in. (14 cm) high
Wood, about 3 in. x 3 in. x 2 in. (7-1/2 cm x 7-1/2 cm x 5 cm)
Nail, at least 3 in. (7-1/2 cm) long
Nuts and olds or nails, at least 2-1/2 in. (6-1/2 cm) long
Rag
Paper
Drill

If Standard Shotgun is Used:

Hard wood stick, about the same length as shotgun barrel and about 5/8 in. (1-1/2 cm) in diameter. Stick need not be round.
2 washers (brass, steel, iron, etc.) having outside diameter of 5/8 in. (1-1/2 cm)
One wood screw about 1 in. (2-1/2 cm) ling
Rubber disk, 3/4 in. (2 cm) in diameter and 1/4 in. (6 mm) thick, leather, cardboard, etc. can be used.
12 gauge shotgun ammuntion

If Improvised Shotgun is Used:

Fuse, safety or improvised fast burning (Section VI, No. 7)
Hard wood stick, about the same length as shotgun barrel and 3/4 5/8 in. (2 cm) in diameter.
Black powder - 9 grams (135 grains). See Section VII, No. 8.

PROCEDURE:

METHOD I - If Improvised Shotgun is Used.
1. Drill hole in center of wood block approximately 1 in. (2-1/2 cm) deep. Holes should have approximately the same diameter as the wooden stick.
2. Drill 2 small holes on opposite sides of the wooden block. hole should be large enough for bolts to pass through.
3. Fasten can to block with nuts and bolts. NOTE: Can may be also be securely fastened to block by hammering several nails through can and block. Do not drill holes, and be careful not to split wood.
4. Place wooden stick into hole in wooden block. Drill small hole (same diameter as that of 3 in. nail) through wooden block and through wooden stick. Insert nail in hole.
5. Crumple paper and place in bottom of can. place another piece of paper around fire bottle and insert in can. Use enough paper so that bottle will fit snugly.

6. Place safety fuse and black powder on paper. Tie each end with string.
7. Thread fuse through hole in plug. Place powder package in rear of shotgun. Screw plug finger tight into coupling. NOTE: Hole in plug may have to be enlarged for fuse.

8. Insert rag into front of shotgun. pack rag against powder package with stick. USE CAUTION.

METHOD II If Standard Shotgun is Used:

1. Follow Steps 1 and 2, Shotgun Grenade Launcher, Section IV, No. 2.
2. Follow procedure of Method I, Steps 1 - 5.
3. Follow Steps 9, 10, 11, Shotgun Grenade Launcher, Section IV, No. 2, using 1/3 of the total propellant instead of 1/2.
4. Load cartridge in gun.

Section IV	No. 4
FIRE BOTTLE LAUNCHER

A device using 2 items (shotgun and chemical fire bottle) that can be used to start or place a fire 80 yards (72 meters) from launcher.

HOW TO USE:

1. Insert stick and holder containing chemical fire bottle.