If you are going to be shooting in the yard at paper targets, think about a nice Gammo pellet gun for the girls. Make sure that they can cock it and load it. The ammo is cheaper than dirt and they are still deadly on targets and ground squirels. I like the ones that come with a scope as a package.

Pellet guns arn't loud and don't kick. The ammo isn't volitile (not like .22 shells are that dangerous but you never know) and, with the proper cardboard backstop and target, can be used inside if you have the room.

On the .22 I would start with the Ruger 10/22 youth model. It's really a life long gun. Kids can develop bad habits but I bet you will be out there shooting with them and you can control the urge to rip 10 rounds off in a blink. If you really want to control the rate of fire, get two clips and put just one round in at a time. Then eject the clip and insert the new one. No different than breaking a gun open or working a bolt.

Good to hear about some girls getting into it. Too bad they can't vote in Nov!