Yes. More than one, not including wildcats.
Many makers have made/still make weapons that fire that round.
Each has areas where they'd have advantages and disadvantages versus the other.
the 220 swift is considered a long action.
Neither. Provide a few more parameters and one or the other might be "better" based on what you want to know.
1935
Usually, no. the .220 Swift cartridge is quite a bit longer, and has a larger cartridge head.
The .220 Swift has a case length of 56mm, which is longer than the .308 Winchester (51.18mm) That puts it into the long action category- so, yes, ALL .220 Swift rifles are long action. One of the earlier rifles was the Winchester Model 70.
No, a Cheetah is faster.
Short
No such thing as an "average gun". The .45 ACP fires a bullet at ABOUT 830 fps. A .220 Swift is over 4000 fps. A .22 pistol and .22 rifle will fire the same ammo, with greatly different velocities.
4400 feet per second
Short