Skirmish is a half hour of 5 – 10 minute relays for you to shoot offhand at paper targets to sight in.
Teams are then picked by random drawing usually 4 -5 people per team. 3 teams on the line at the same time to shoot their targets. Teams have 3 minutes to shoot their targets. The object is to get the targets down as fast as you can and call time. There are usually 5 events per day. The team with the best combined time for all 5 events is the winning team.
This is shot with single shot .22s to be like shooting a muzzleloader, but you are allowed magazine loaded .22s. However you may only load 4 rounds in the magazine, shoot those and then load 4 more in that magazine.