Beware of scammers.

There can be many reasons, or a combination of several factors. The best bet is to get a much better description of "feeding issues", once you have that info share it with the forum, that way there is some direction to point a finger at that might be a cause.

The Remington Model 11 is fairly common, and there are several variations. Check the online sites for shotguns of the same Make, Model and condition as yours, compare prices from several listings to get a ballpark value of your M11.

Contact Remington directly, they should be able to provide info.

Info for the Browning works well for the Remington version, there should be plenty of takedown info on the web. The bolt needs moved rearward before the barrel will rotate.

There is probably years of crud and gunk built up, an application of penetrating oil or solvent should start loosening parts ...

Welcome to the forum gunsmith44, glad to have you aboard.

The number of companies that build aftermarket stocks and parts is huge, the M700 is a top rifle for improvements in accuracy. It's just a matter of setting your accuracy goals and having a thick wallet. Another consideration is who is doing the work, are you doing the work yourself or hiring ...

Remove the stock from the barreled receiver, looking at the inletting should reveal if additional work has been performed since leaving the factory.

Remington plus Russian usually adds up to a Mosin Nagant, maybe an M91. A picture would go a long ways to helping identify.

Dates can be fudged a bit. Your date code is when the ''barrel'' was made, not necessarily the receiver nor a complete rifle. "Made'' and offered to public are not the same.

Both the Buffer Spring and Recoil Spring are specific to the .25 Rem cartridge. They do not interchange with any other cartridge.

There really isn't any "other" stocks that fit. While there are some clones of the M700 action what usually isn't cloned is the barrel contour, or the bottom metal.

If you are in a hurry then look for a "take off" stock, a "drop in" stock or a "chassis" stock. Any of these choices should have you ...

The TPI can be determined by the screws in the receiver. Original screws may be difficult to locate, direct replacements may be difficult also. Both Brownells and your local hardware store may have suitable screws, you may need to fit head diameter and overall length.

... but there's no sign of any metal having been polished. If it was reblued, it's the best job I've ever seen.

The sights, both front and rear, show a lot of signs of blue wear. The buttplate screws show wear as well as a couple of other parts. The receiver has almost too much blueing when ...

Welcome to the forum M12, glad to have you aboard.

I think it has been restocked, if reblued it was well done. Whoever did the work did good work, very little evidence of changes made. Some of this may have been from having a nice rifle in great shape to start with.