It could be considerable depending on the rifles overall original condition.If your rifle has not been changed from its original condition,anywhere from 2,000-4,250 dollars.
if the barrel is nickel steel 1900-2500 bucks
the win mod 1886 is a very collectable rifle.this rifle in the calibre that you describe was made early on in production.the serial number is very important in determining the value,also if it has a octagon barrel,half octagon to round,or round barrel.barrel length,case hardening of the frame buttplate and forearm cap if it still exsists? the amount of finish on all metal parts? one thing that does help the value of this firearm is that only 830 were made in this calibre out of a total production of 159,994.this rifle was made from 1886 to 1928,and clean up of parts ended in 1932.
It really depends on the condition of the rifle. The 4590 is probably the most desired model and can be worth more than 10,000 dollars in good condition. Even one that is not in that great of shape can fetch up to 3,000 to 4,500 dollars (US). It is good this rifle is pre 1900, as only adds to the value....
Unfortunately, there is no way to give you a simple answer. Value is based on make, exact model and condition. In the case of an antique collector's rifle, condition is a heavily weighted factor. You will need a hands on appraisal. Value to be anywhere from $1,500 to several thousands. You best answer will come from taking your (unloaded) rifle to a gunshow in your area.
1886
No such caliber.
Winchester never chambered there model 1894 lever action rifle in 50 caliber.There were only 2 Winchester model rifles chambered in 50 caliber,these were the model 1876 rifle in 50-95Win.caliber and the model 1886 rifle in 50-110 Express caliber.If after further review you see that you have either of these rifles,then the model 1876 rifle with the serial number provided was made in 1880.If yours is a model 1886 rifle it was made in 1887.
Requires professional appraisal
There are so many variables that could affect the value of your winchester model 1886 that you would be prudent to have your rifle appraised by a member of the winchester collectors assoc,or a firearms expert employed by many of the better firearms auction houses here in the U.S. Your winchester model 1886 was made in 1895 by winchester and with the many options that could be ordered at that time the value could be anywhere from 2,000 dollars up to 4,500 dollars.
This Winchester Model 1886 was made in 1909.
your winchester model 1886 rifle was made by winchester in 1898.
1891 is the answer to your question as to the date of your model 1886 Winchester