Hi from Big Sky Country (MT)

I took the plunge and bought a Stevens 555 O/U about a week ago. I'm new to shotguns in general and own a Weatherby PA-08 as my first shotgun.

I took the 555 out to the range today and fired it for the first time. Both barrels went off, regardless of the selector switch. It didn't double fire, i.e. Boom-Boom, but fired a single double barreled shot, one BOOM. Thank the Maker, I was using target shells or I would have ended up in the mud. I put about 20 shells through it even switching the barrel selector back a forth a few times.

I am sending it back to Savage Arms. Has anyone else has this problem?

Twistofer