Shotgun follow-up
I incorrectly referenced “caliber” when referring to my shotgun, and the cards and letters started flooding in!
It took a little digging, but Steve found the details for my shotgun. It is a 2006 Browning Citori 525 Field Special Steel 20 gauge over/under shotgun. We also found that we paid $2,400 for it back in the day, and we both agree it is totally worth it. It is a fantastic gun for shooting clays!
Here it is tucked away in our fully-stocked gun cabinet.