Ruger has several very good rifles in .22, .22 mag, & 17 HMR. I have one in 22 Mag that is stainless with a synthetic stock. It has a fold down rear open sight. I have a 3X9 Leupold on it so I can shoot prairie dogs. It shoots under an inch at 50 yards and under 2 inches at 100 (with no wind).
Marlin also makes several very nice 22's, but I am not sure about stainless. You might take a look at their website:
www.marlinfirearms.com.
I'm not sure where you are located. In South Dakota, if you are shooting a critter at night, you can only use a rimfire or a shotgun. If you are just target practicing, you can use anything. The restriction only applies if you are hunting.
Good Luck,
SD Shooter