Can't be answered withou knowing if you are referring to a rimfire or centerfire 22
Centrefire tends to be more reliable, overall, and rimfire is used for very limited purposes... namely, subcalibre firearms.
Some are rimfire, some are centerfire. Depends on the design of the firearm.
No. The terms "rimfire" & "centerfire" should self-explain. On rimfire the priming compound is in the rim of the cartridge and on centerfire the primer with the priming compound is in the center of the cartridge.
Centerfire
A centerfire cartridge has the primer in the middle on the bottom side of the shell, where as the rimfire is the whole bottom.
Centrefire
No- it is neither centerfire nor rimfire, since it does not use cartridges.
.17 HMR is a rimfire cartridge. The HMR stands for "Hornady Magnum Rimfire"
32 long is a rimfire cartridge.
No, it's a rimfire round.
Look on the back of the cartridge and if it has a circular primer it is centerfire if i doesnt have anything it is a rimfire shell