I bought my rifle second hand through GunBroker.com.
It's a CVA Optima came with leather sling, Bushnell scope 1.5X - 4.5X, and soft case for $149. plus shipping. It shoots 2 inch groups at 100 yards when I do my part. I've killed three deer with it - all one shot a piece.
CVA Wolf is a good one, too. My brother bought one new as a close out item from Bass Pro about 18 months ago for $139. It shoots quite well.
CVA Elite is their top-of-the-line model. But sometimes a used one goes for less than 175. on GunBroker.
You'll be happiest with a ML that breaks open like a shotgun. They're easist to load the cap and to clean as well. Nearly all the companies build this type now.
CVA and TC are probably the most common within the used market. Check for signs of neglect or abuse before buying.
Sherwood