480, welcome to the world of clays! As some have already said, an $1100 O/U will not hold up shooting the volume of rounds we do in clay games. 2000-3000 per year and the $1100 O/U may last 4-5 years. Being a range owner I see a lot of shotguns. The reason we don't see too many of the inexpensive guns is simple, they don't last. Franchi and Weatherby make semis that you might be interested in and they can be had in your price range. If you bite the proverbial bullet and go for a Beretta, Benelli, Fabarm,Remington, etc, it will last you many, many years. I have 1100s and 11-87s that I used extensively 25 years ago and they are still plugging along. If you choose to go with an O/U, if you can, spend the $$ and buy quality. My first O/U was a Tri-Star Sporting Model.. Shot the life out of it in 2 years. Then I bought a Browning 425 in 1996 and have put 100,000 + rounds through it. Only regular maintenance (springs,occasional firing pin, good cleaning) are needed to keep quality guns running for generations. My son has this gun now. Best wishes on your quest for "The Gun"!!
In an age of universal lies, speaking the truth is a revolutionary act - George Orwell