When it comes to shooting iguanas, there are a few different options available. For smaller iguanas, a pellet gun or an air rifle may be sufficient. If you're dealing with larger iguanas, however, you may need to resort to something more powerful, like a shotgun.
Of course, before you start shooting any iguanas, you should check with your local laws and regulations to make sure that it is actually legal to do so in your area. In some places, it may only be allowed under certain circumstances, such as if the iguana is causing damage to property or posing a threat to humans or other animals.
If you do decide to go ahead and shoot an iguana, aim for the head or body - avoid hitting the tail, as this can cause the animal unnecessary suffering. And always remember to practice safe gun handling and storage procedures afterwards!