There's such a wide range of quality when it comes to O/Us that the old saw "you get what you pay for" could never be more true.

I've "borrowed" a Mossberg and a Remington both while their owners "borrowed" my Beretta. Of course, there was a huge difference between the three. Chasing pheasants I doubt It would have been as significant, but on the trap range it was clear why the Beretta was three times as expensive as the other two. I felt like I had to pry my Beretta out of their hands just to get it back.

If you're serious about shooting trap, spend some coin. If you're just planning on throwing a few clays out on your back forty every so often and doing a bit of hunting now and then, you'd probably be fine spending considerably less with the others mentioned.