Just shell casings? Reloading a rimfire cartridge is a really impractical thing to do, and you're really not going to find anyone selling them. Maybe you have some friends who keep some spent .22 LR brass? That would be your best bet.
No. .22 Magnum and .22 Long Rifle are not interchangeable.
Need a detailed description
10-1000 USD and up depending on specifics.
No published sn data.
No, the 22 Mag will not fit.
.22 Long was developed @ 1871, Uses the same case as the 22LR but with a 29 g bullet. ,22 Long Rifle developed by Peters Cartridge in 1887. Uses bullets in the 32-40 g range
50-500 usd
They will fire the standard .22 short,.22long,and .22 long rifle cartridges.
Mossberg. They are in business, and have a website. Try Customer Service.
Brass
Made roughly 1948-1965. Values around $100.
The model 1890 Winchester was only chambered in .22 short,22long,22 long rifle,or 22WRF calibers which were all rimfire calibers.