First, get a .22LR semi auto.
Then, get a "brick"(500 rounds).
Go somewhere legal to shoot.
Then, put on your ear protection and use up the whole brick.
After you have mastered that, graduate to something larger, like an AK or M-16 type weapon. Work your way up to a 30.06 or 7 mag.
Whenever I hear such stories, it reminds me of men handing women a 12ga pump with a slug or buck shot to make themselves feel more like a man when she never wants to shoot again. Maybe it's for self protection when he comes home drunk smelling of perfume.