The Steel Challenge is a speed shooting competition governed by the Steel Challenge Shooting Association (SCSA) that consists of eight standardized stages with steel targets, ranging in size from 10″ (25 cm) round plates to 18×24″ (45×60 cm) square plates.
For each run, one hit per target is required, with an unlimited number of rounds. The last target to be shot is known as the “stop plate”, which stops the timer. All primary target hits made after the stop plate has been struck, will be scored with a 3 second penalty each. The maximum time permitted for a run is 30 seconds and a competitor will be stopped and asked to reload if they reach the 30 second limit.
The steel Challenge site: https://steelchallenge.com/index.php