You can look up the age on OldGuns.net or in a guide book. Value is determined by a number of factors in addition to age, e.g., condition, any "special issue", documentation, etc. You might want to check out the NRA Condition Grading Definitions For Antique Firearms. To get a reliable estimate of the value of your gun, see a professional appraiser. Of course, ultimately the value of anything is what it is worth to individuals. What is it worth to you? What is it worth to an individual potential buyer. The gun may be worth more to you because it has sentimental value, e.g. it was your grandfather's gun.
It can, but, damage will eventually happen. Not recommended.
The winchester model 120 ranger model shotgun was made between 1964-1981.
If you are asking if Winchester made a Ranger model 120/12 gauge shotgun,then the answer is yes.It was the economy version of the model 1200 shotgun which was made from 1964-1981.
No not to my knowledge but Winchester did.
No
The Winchester 140 12 gauge has a choke barrel at 28". This is the same choke size as the 20 gauge model.
125-200 dollars.
50-180
The Winchester model 120 ranger was a economy version of the Winchester model 1200 shotgun.the model 1200 was produced during 1964-1981,and the ranger was also produced during this time.
50-250 USD or so
Best left to a gunsmith
I bought a Winchester ranger 140 for $220 in awsome shape at a pawn shop that deals mainly with guns near St. Louis