the gun that is more worth your money is a 12 gauge because you can go deer, turkey, pheasant and duck hunting and trap shooting without having to worry about getting to far because with a 20 guage duck hunting you would pretty much be able to grab the duck by the time it is close enough to shoot
100-1000 or more depending on specifics
No more than 100 USD.
Highly unlikely you will find any. Getting them made will probably cost more than the shotgun is worth.
20
Relative to what? To an interested collector, a 24 gauge would be worth more than an identical gun in a larger (and more common) gauge. To someone who wanted it for hunting or target shooting, it would be worth less than one for which ammunition is readily available.
100-300 or so Depending on condition, above $500. The 20 gauge shotguns are rarer and worth more than the 12 gauge. 2/3/12
Value depends on gauge and condition. A 20 gauge is worth more than a 12 gauge, for instance. If your gun is in very good condition it might bring around $800. Monitor www.gunbroker.com to see what similar offerings are selling for.
Without more specific information; 100-1000 USD or so
The shotgun.
100-400 or so A little off on the guesstimate there. The ducks unlimited shotgun Is an Ithaca Model 51 12 Gauge and it is worth considerably more than 100 to 400. The going rate for this shotgun is anywheres of 500 to 700 in decent shape and if it hasn't been fired worth considerably more.
The AH Fox Sterlingworth 20 gauge side-by-side shotgun is worth about 2500 dollars to about 9000 dollars depending on its condition. Certain barrel and stock styles are more valuable than others.
You will need to provide a little more information.Please indicate what type of Browning shotgun that you have,and what gauge your shotgun is in.