Short answer - No. However, if it is .32 long CF sizing dies are available to form cases from .32 S&W Long or .32 Long Colt. If it is rimfire, occasionally someone will make a run of a few thousand boxes. You might find some at a gunshow or you might be able to order some from Cheaper Than Dirt. Expect to pay about 75 cents to $1 for each round.
Could be ammunition, magazine, dirty, etc..
That will depend on whether you are shooting short, long or long rifle ammunition.
No, firearms chambered in .22 short, .22 long, .22 magnum, .17HMR, etc... are all currently being manufactured. These all use rimfire ammunition.
.32 Long Rimfire ammunition is currently available from Old Western Scrounger, a division of Navy Arms. This is new-manufactured ammunition, produced on contract in Brazil by CBC. This is the only source of useable .32 Rimfire and it isn't cheap. This ammunition works well in the Stevens "Favorite" rifle and should work in any other firearm chambered for it. The .32 Short Rimfire is not available. Dixie Gun Works sells adapters to allow use of rifles and pistols in .32 Short and Extra Long Rimfire by using a .22 "acorn" blank as a primer. The Short adapters can be used in rifles chambered for the .32 Long, but the Extra Long adapters cannot. The .25 Rimfire hasn't been loaded since 1941 and all remaining stocks are gone. It is completely un-obtainable except for collector ammunition that is far too expensive and probably too old to shoot.
YOU MUST HAVE IT EXAMINED BY A GOOD GUNSMITH, before you attempt to fire it with modern ammunition.
Probably. The name was owned by Sears Roebuck and after a brief period when they owned their own firearms manufacturer (Meriden Arms) Stevens made most of their single shot shotguns.
Not that I'm aware of. Probably because there are no ammunition manufacturers making 3-1/2 inch long, 20 gauge shotgun ammo.
If properly stored in cool, dry conditions, modern ammo has a very long shelf life. We do not know how long, since modern day ammo dates to about WW II (1940s). I have recently shot WW II ammunition, and it works fine.
Judith Stevens-Long has written: 'Adult life'
Depends on it's condition. Stevens is antique and no-longer in business Stevens Arms was an American firearms manufacturer founded by Joshua Stevens in 1864. The company introduced the .22 Long Rifle round and made a number of rifle, shotgun, and target pistol designs before being bought by Savage Arms in 1920. After 1920, Stevens made training rifles and machine-guns for the US Military. Savage stopped using the Stevens brand by 1950. (wiki)
Stored in moderate temperatures and low humidity, ammunition can be stored for decades.
It can fire .32 Smith & Wesson and .32 Smith & Wesson long ammunition. These are the only ammunition types it is designed for, and is NOT compatible with other types of .32 calibre/7.65mm ammunition.