81mm Practice Mortar

[browningautorifle]

the actual practice tubes to use with these dummy bombs.

We never had those. Never even saw one until they were for sale on a surplus site.

an insert system powered by compressed air

We had those and used them, a bit flakey but gave you the idea at least. We set up out mini map and landscape on the edge of the parade square but started destroying the little bombs so concluded that. The little bombs could take a .22 blank in the nose so the gave a report on impact but we didn't do that. There was a later model insert that used a full sized steel bomb that was a barrel containing the sub bomb. They used a MUCH bigger scale map of about 300 meters and different colored bombs gave different ranges. You had to use a fetching rig to get the bomb out of the tube after firing so you didn't need to do the misfire drill. It came long after I was elsewhere so I didn't use that one.