Otto, so your top-end budget is just north of $1200, you want to limit yourself to skeet, and you want to shoot competitively. Texas is right....thats easy. Get a 20. In the skeet game, it will do anything that the 12 can do as long as you point it in the right direction. Barrel length? Purely personal. 26, 26 1/2, 27, 28, 30 can all be shot effectively on the skeet range. And subgauge tubes can be added later,when funds are available,to get you into the 28 and 410 events. If I'm you, I would be looking for a good used B-gun. My guess is, you will quickly become dis-satisfied with an entry level gun of the Baikal-Verona ilk.