There are some misconceptions being put out here.
http://www.scouting.org/HealthandSafety/GSS/gss08.aspx
The Boy Scouts of America adheres to its longstanding policy of teaching its youth and adult members the safe, responsible, intelligent handling, care, and use of firearms, airguns, and BB guns in planned, carefully managed, and supervised programs.
Except for law enforcement officers required to carry firearms within their jurisdiction, firearms shall not be brought on camping, hiking, backpacking, or other Scouting activities except those specifically planned for target shooting under the supervision of a currently certified BSA or National Rifle Association firearms instructor.
Cub Scouting Standards
Youth members of Cub Scouting are permitted to participate in the shooting activities named in here only.
Archery and BB gun shooting are restricted to day camps, Cub Scout/Webelos Scout resident camps, council-managed family camping programs, or to council activities where there are properly trained supervisors and all standards for BSA shooting sports are enforced. Archery and BB gun shooting are not to be done at the pack level.
Cub Scouts are not permitted to use any other type of handgun or firearm.
Boy Scouting Standards
Boy Scouts may participate in all activities previously listed for Cub Scouts and in the activities listed here.
Shotguns
1. For range shooting, shot size is determined by the range rules.
2. All shotgun shooting activities must be supervised by a currently NRA-certified Shotgun Instructor and when on the range, must be supervised by a currently NRA-certified Range Safety Officer.
3. Shooting safety glasses and ear protection must be worn on shotgun ranges.
4. Care must be taken to comply with federal, state, and local laws.
Muzzle Loaders
1. Muzzleloading firearms must be of modern manufacture. Firearms made from kits must be certified safe by a licensed gunsmith.
2. All muzzleloader range shooting activities must be supervised by a currently NRA/NMLRA-certified muzzle loader firearms instructor and when on the range, must be supervised by a currently NRA-certified Range Safety Officer.
3. For range firing, each participant must have one instructor or adult coach under the supervision of a currently NRA-certified Range Safety Officer.
4. Shooting safety glasses and ear protection must be worn on muzzleloader shooting ranges.
5. Care must be taken to comply with federal, state, and local laws.
Rifles
1. Boy Scouts may shoot single shot 22lr caliber bolt action rifles only.
2. All rifle shooting activities must be supervised by a currently NRA -certified Rifle Instructor and when on the range, must be supervised by a currently NRA-certified Range Safety Officer.
3. Shooting safety glasses and ear protection must be worn on rifle ranges.
4. Care must be taken to comply with federal, state, and local laws.
Venturing Standards
Venturers may participate in all activities previously listed for Cub Scouts and Boy Scouts and may participate in activities listed below:
Handguns
1. Handgun use is limited to the Venturing program.
2. All pistol shooting activities must be supervised by a currently NRA -certified Pistol Instructor and when on the range, must be supervised by a currently NRA-certified Range Safety Officer.
3. When on the range, there must be a ratio of no more than three shooters per adult coach or instructor. The adult coaches or instructors must be close to the shooters for close supervision. The adult coaches/instructors must be supervised by the Range Safety Officer.
4. All participants must complete an NRA basic pistol marksmanship course prior to range firing.
5. With the approval of the local council, handgun shooting may be conducted on BSA camp ranges, provided the shooting is done under the supervision of a currently NRA-certified Range Safety Officer.
6. Shooting safety glasses and ear protection must be worn on pistol ranges.
7. Care must be taken to comply with federal, state, and local laws.
Rifles
1. Venturers may shoot all rifles.
2. All rifle shooting activities must be supervised by a currently NRA -certified Rifle Instructor and when on the range, must be supervised by a currently NRA-certified Range Safety Officer.
3. Shooting safety glasses and ear protection must be worn on rifle ranges.
4. Care must be taken to comply with federal, state, and local laws.
Cannons and Large-Bore Artillery
Units are not authorized, under any circumstances, to use a cannon or any other large-bore artillery device