How old do you have to be to shoot a 22 rifle in IA?

With the permission of your PARENTS, you must be old enough to reach the trigger- there is no minimum age. Without your parent's permission, you must be at least 18, an adult. For what it is worth, my granddaughter began shooting with me at age 9, and now at age 13 shoots in competition- with a 22 target rifle. Good luck!