I’ve not gotten into competitive shooting, but must admit I find it fascinating. I happened to catch 3-Gun Nation on Sportsman Channel and the competition was fantastic. About all I knew before watching the show was 3-Gun competitors use a pistol, shotgun, and rifle. I had no idea just how difficult the stages could be. If you can get Sportsman Channel check out the show.
If you are like me and know little about 3-Gun, The Truth About Guns had a great primer entitled Competition 101: 3-Gun.