The Scholastic Shooting Sports Foundation offers shooting tournaments in two disciplines: the Scholastic Clay Target Program and Scholastic Pistol Program. Offered to students from elementary school to college age and led by qualified coaches, the program prides itself on not only teaching shooting fundamentals in pistol and shotgun, but also, "teaching life lessons and skills that emphasize positive character trains and citizenship values."
The National 4-H Shooting Sports' motto is "Skills for life–activity for a lifetime." You may think that 4-H is a rural organization in which kids raise cows and pigs for the county fair, but it's much more. In 4-H Shooting Sports, kids learn marksmanship while being safe and responsible. Stemming from land-grant universities, its curriculum relies on Cooperative Extension agents, certified 4-H leaders, national- or state-certified instructors, and other trainers who teach muzzle-loading rifle, pistol, rifle and shotgun during the school year and at special camps.
The Boy Scouts of America is one of the largest training programs for shooting in our country. Cub Scouts start with BB gun-rifles, and as they mature through the program to become Boy Scouts, they progress to air rifles, pistols, rifles, muzzleloaders and shotguns. Certified instructors teach the boys, and the organization offers training during the program, or at summer camps. The BSA encourages its units to offer yearlong marksmanship training.
AIM is the official youth program of the Amateur Trapshooting Association, the governing body for the sport of trapshooting. A youth shooter does not have to belong to a team and can compete individually, but if you're interested in starting a team or finding a team—with coaches and facilities—check AIM's website.
If you know of a young person with great shooting skills, check out this video from USA Shooting Youth Programs. It highlights all 15 Olympic shooting sports. USA Shooting holds sanctioned competitions throughout the nation, where youth shooters can learn how to compete in the firearms sports. There are three levels for juniors: Junior 1, age 18 to 20; Junior 2, age 15 to 17; and Junior 3, 14 years and younger.
The Civilian Marksmanship Program boasts a rich history that dates back to 1903, when Congress created the program to train men for war. Now a federally chartered 501(c)(3) corporation, the CMP still teaches adults to shoot, but especially focuses on youth training, including gun safety and marksmanship. The CMP promotes Three Position Air Rifle shooting by providing low-cost gear, ammo, and training materials. It also hosts events for juniors and adults, as well as open public shooting evenings. The CMP currently lists more than 2,000 clubs affiliated with its organization.