 1) A hole is drilled.  3) The breech body is inserted into the hole.  5) The firing mechanism assembly is screwed tightly into the breech body.  7) The unit is fired from a distance of 7 metres. |
 2) The hole is filled with water.  4) The safety mat is positioned and a cartridge is inserted into the breech body.  6) The lanyard is attacked.  8) The resulting brocken rock. |