I have a Mossberg 500 myself and I LOVE it! I've taken it on target shooting and it is relatively accurate for what I shoot.
For the price the 500 is a good firearm and you can get use to shooting this sized firearm. Then if the need arrives you can upgrade to a quality O/U, someone will always be in the market for a 500 down the line so you can't go wrong there.
For the price the 500 is a good firearm and you can get use to shooting this sized firearm. Then if the need arrives you can upgrade to a quality O/U, someone will always be in the market for a 500 down the line so you can't go wrong there.