Bought a new rifle

[Eville]

over/under shotguns are one shotgun barrel of another shotgun barrel. both barrels are identical.

[JFellows]

over/under shotguns are one shotgun barrel OVER another shotgun barrel. both barrels are identical.

Fixed, but you had the right idea. Both are chambered in 3" 20 gauge in this case.

[Eville]

Fixed, but you had the right idea. Both are chambered in 3" 20 gauge in this case.

Yeah that's what I meant. Sorry, I had a really long night of playing with the flu.

[here'sjohnny]

So is there an advantage to an over/under gun as opposed to a side by side double?

[Eville]

i imagine its just personal preference

[JFellows]

I'm not an expert, but I think Side by Side guns generally use two triggers...O/U (at least in this case) uses a single trigger to fire the shells in both barrels. The gun is cocked when you fold the front end back in to close the back of the chambers (like with a Side by Side...I think), but then you can pull the [only] trigger twice (to fire twice) before having to reload.

[Rmac58]

Not sure on the number of triggers on a O/U.
I'll agree with Eville, personal preference. You aim the SxS in the middle of the two barrels, so I would go with an O/U. My current shotgun is a pump.
They do make semi auto shotguns, but they are very pricey, the newest from Baretta, a break open semi runs $3200.
Some companies make a three barreled rifle, with three different calibers, none are shot shells tho.
I don't hunt, but folks I know that do, use primarily a shotgun of their own want.
Handguns are the biggest crime problem, I'm getting another one, as it's become a hobby.