Extreme Trials

Kris Reid dug up an interesting Soviet method of trials.

"Task #4.
Scenario: A small unit of submachinegunners on horseback is deployed to pursue the enemy and disorganize his rear.
Target: 3 #27a targets (cargo truck)
Ammunition: 10 rounds
Time: Unlimited
Shooting position: from horseback.
Order of trials:

1. Shooters mount horses 300-400 meters from their targets. SMGs are ready for combat (loaded, safety off), trot up to the target range, and, after dropping their guns on pavement or hard dirt, stop 50 meters from their target and fire in bursts of 5. 
2. Same, but do not stop the horses.

...

Sudayev's SMG had the rear sling mount point disconnected, and fell first on the side of the road, then on the pavement. No damage was found. After the last fall, the horse stepped on the magazine catch and bent it. The SMG was found suitable for continuation of the trials. Shooting was performed from horseback, first from 50 meters away from the target, then while the horse was trotting parallel to the targets. Both shooters fired from the same horse (nicknamed Immennoy)."