Find yourself an RWS model 92. The 320 is Chinese luck of the draw, you may get a good one, or you may get a bad one. The Spanish guns are more consistent. The 92 is the one to get. 93 is just a cheapened version of the 94, (which is an excellent gun, based on what I've read.) but the 92 is DESIGNED to be a 650-700 fps gun, with a fully adjustable 2-stage trigger. Everything I've heard about the 92 has been positive, so long as you don't want balls-to-the-wall magnum power.
My RWS 320 kicks ass,220 pellets through her and with the iron sights i can hit the ten ring at 23 feet 2 out of 3 times,going to scope her soon with a bushnell and 1 piece mount.
Extremely accurate with fat ass barrel(.177)