Charlie...I used to a lot of predator hunting at night...

In the southern zone, you could use a shotgun with #4 shot or smaller OR a rimfire rifle.. No slugs, buckshot or centerfire rifles allowed.. That was before 17 rimfires, so it pretty much limited you a shotgun with small shot or a .22 or .22 mag rifle...

Now that regulations have been relaxed on rifles, it may have changed.. I have seen posts by fellows in western NY using .22 centerfires at night for 'yotes.. Check the regs or talk to your local fish cop...