Remington still offers their M799 in .222 with MSRP at $599.
Savage has their M25 in .222 about the same price. That means you can buy those rifles for under $500 if you look around. Good used rifles are out there too.
Brass is readily available, powder is common, small rifle primers do the job, and bullets are of plenty. A Lee hand press and 20 cases will provide a full days shooting. Neck size only and your brass will last practically forever. I spend the day shooting a few, loading a few and shooting again.
Whittington Center Life
Times are tough, ammo is expensive, there will be no warning shots.