They are a great little lightweight gun, and great shooters. Probably not worth a ton of money - (though maybe a little more as a QDMA model than normal). If it was mine...I'd probably shoot it. Those style guns usually shoot VERY well with .240 - .260 sabots (xtp, speer, knight, etc) and anywhere from 90-100gr loose powder. I use RWS #11 caps, they seem to be the best. They also shoot conicals well, if you are interested in them.

Edit: I'm assuming it has the #11 setup in it. Some of the newer versions had 209's. They work well also, but I prefer #11 setup.