Grenade Launcher (57mm Cardboard Container)

Section IV

No. 3

An improvised method of launching a standard grenade 150 yds. (135 meters) or an improvised grenade 90 yds. (81 meters) using a discarded cardboard ammunition container.


  • Heavy cardboard container with inside diameter of 2-1/2 to 3 in. (5-1/2 to 8 cm) and at least 12 in. (30 cm) long (ammunition container is suitable)
  • Black powder - 8 grams (124 grains) or less
  • Safety or improvised fuse (Section VI, No. 7)
  • Grenade (Improvised hand grenade. Section II, No. I may be used)
  • Rag, approximately 30 in. x 24 in. (75 cm x 60 cm)
  • Paper

CAUTION: 8 grams of black powder yield the maximum ranges. Do not use more than this amount. See Improvised Scale, Section VII, No. 8, for measuring.

PROCEDURE. METHOD I - If Standard Grenade is Used.

1. Discard top of container. Make small hole in bottom.

2. Place black powder in paper. Tie end with string so contents cannot fall out. Place package in container.

3. Insert rag wadding into container. Pack tightly with CAUTION.

4. Measure off a length of fuse that will give the desired delay. Thread this through hole in bot¬tom of container so that it penetrates into the black powder package.

NOTE: If improvised fuse is used, be sure fuse fits loosely through hole in bottom of container.

5. Hold grenade safety lever and carefully withdraw safety pin from grenade. Insert grenade into container. lever end first.

CAUTION: If grenade safety lever should be released for any reason, grenade will explode after normal delay time.

6. Bury container about 6 in. (15 cm) in the ground at 30′ angle, bringing fuse up alongside container. Pack ground lightly around container.

CAUTION: The tightly packed dirt helps to hold the tube together during the firing. Do not fire unless at least the bottom half of the container is buried in solidly packed dirt.

METHOD II - If Improvised Pipe Hand Grenade is Used.

1.Follow step 1 of above procedure.

2. Measure off a piece of fuse at least as long as the cardboard container. Tape one end of this to the fuse from the blasting cap in the improvised grenade. Be sure ends of fuse are in contact with each other.

3. Place free end of fuse and black powder on piece of paper. Tie ends with string so contents will not fall out.

4. Place package in tube. Insert rag wadding. Pack so it fits snugly. Place pipe hand grenade into tube. Be sure it fits snugly.

5. Insert fuse through hole in end of cardboard container. Be sure it goes into black powder package.

NOTE: Cardboard container may be used for only one firing.

6. Follow step G of Method I.


Light fuse when ready to fire.

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