I am wanting a new rifle, but I don't know which caliber. Looking for something fun to shoot, relatively inexpensive (gun and ammo), accurate, and preferrably with a heavy style barrel. I am currently looking at .17HMR's on the rimfire side and .223 Remington on the centerfire. Preferrably something pleasant to shoot for target use out to maybe 100-150 yards. Also, does anyone know of any decent scopes in the $100-150 range? Thanks