It depends on the animal you're hunting. For example, a deer would require a rifle. Smaller animals typically can be hunted with a varmint rifle. If you dont know what gun you need, you can study the animal and open the compendium to see the information on it. The weapon required is towards the bottom of the compendium entry for the animal. Hope this helps!

Whenever I’m hunting I use a Springfield for medium and big game and a varmint for small animals. I’ve never had any need for any other gun when hunting

@BillybobTheDestroyer Good advice 👍 I prefer a bolt action for its 5 round capacity, but the Springfield may be better for some applications.