Target retrieval system

In a system for placement and retrieval of targets and including a power drive unit for location at a firing line, a bullet trap assembly for location at a remote target position, and a target carriage shiftably disposed on trolley cables between the power drive unit and the bullet trap assembly and arranged for being driven by the power drive unit between the firing line and the target position, a modular arrangement for removably installing the drive unit, the trap assembly, and the trolley cables and target carriage, comprising;

• (a) self-locking mounting means for removably securing said drive unit and said target trap assembly at the firing line and the target position, respectively, said mounting means including one or more keyhole apertures formed in the drive unit and oriented to engage with respective headed studs at the firing line whereby tension force exerted by said trolley cables biases the drive unit toward the bullet trap assembly to secure the drive unit at the firing line, and
• (b) attachment means for detachably securing the trolley cables to the drive unit and the trap assembly.