Making the assumption that you have a Baker Batavia Leader shotgun, the value can be anywhere from $100 to $2000. There are multiple grades of these shotguns, ranging from plain to ornate. With a collectable gun, condition plays a major part in pricing. You need a hands-on appraisal from someone that knows these guns.
300.00
10.99
About $285 at Gunsatcost.com
200
50-100 or so
Yes. The Mossberg 500A1 is a .12 gauge shotgun.
Yes, a 12 gauge shotgun is considered a firearm.
A bolt action shotgun in 12 gauge.
50-200
Seldom exceed 100 USD
50-150 dollars is the going price for a Noble shotgun.
a 12 gauge shotgun can shoot about 30 yards accuracy