LOL, nope
Is it from this century?
Designed in 1896
I’ll take that as a No, Lol
7.62×25mm Tokarev or 7.65×25mm Borchardt
Not quite with either of them but close enough, it’s a 7.63x25mm Mauser.
357 Sig ?
Nope not that 1
358 Sig?
What about a 7.62x25 Tokarev?
Bigger then them, here it is next to a familiar round
Is it a .400 CorBon?
Yeah mate that’s it
357 minimum?
Nope bigger
Is it a .44 of some description?
It sure is
Hint time,
The cartridge was released in 1880 and is not very powerful, less power than a 22 short.