I have one of those rossi single shots with a 243 and 20 ga barrels for it that was a waste of time and money. It has seen about a box of shells and I doupt it will ever leave the house again. Do not buy one. Your welcome to use mine to let her try it if you would like. Don't know if its the cheep scope or barrel but I couldn't get any type of group with it. You can try the kids model 70 that they have both killed deer with too.
My brother has an old rem 243 that is one of the ugliest guns you will ever see and has spent more time under a truck seat than any gun ever should. That thing is always dead on. Probably has killed a dozen deer and a hundred yotes.
Let me know