On the rifle, does it give a city or country where it was made? This will usually be stamped in to the barrel. If it has the words Spain it is probably a BPI rifle. Its a shame you can't post a picture of it. Then these people would pick that thing off right now...

Is this an inline rifle? Or does it have a hammer on the side of it? How long a barrel? Does it give a twist rate on the barrel? fiber optic sights? what ignition system does it take?