Improvised Munitions Handbook (Improvised Explosive Devices or ...

5. If plastic explosive is used, fill the container with the
explosive using small quantities, and tamp explosive
with wooden rod or stick.
Note: If castable explosive is used, refer to step 4 of
section 2.3.
6. Cut wooden rod to lengths 2 inches longer than the
standoff length (see table). Position the rods at the
corners of the explosive filled container and hold in
place with tape.
Note: The position of the rods on the container must
conform to standoff and penetration dimensions given in
the table.
7. Make a hole for blasting cap in the side of the container 1/2 inch above the liner and centered with the
wooden rod.