No. They both use a different diameter bullet and the case is different. The .357 Sig case is a bottle-necked version of the .40 S&W case. The .357 mag is a longer version of the .38 Special.
What model? Revolver or semi-auto? New? Used?
Coonan Arms
.357 mag in revolver .45 auto in semi auto
Winchester, Marlin, Rossi (and maybe a few others) make lever action rifles in .357 Mag... I personally wouldn't pick that cartridge for anything other than a pistol, or if I were shooting in a cowboy match (where the .357 isn't allowed for the most part, anyway...) But if you need a long gun in .357 Mag, there are plenty out there. Good luck.
Yes, but, not recommended.
38 Special and .357 Magnum.
No. You can fire .38 Special (and .38 Special +P) in any .357 Magnum firearm, not .38 Auto. Do not attempt the reverse (firing .357 Magnum in a .38 Special firearm); the results will be disastrous. The .38 Auto does not have a rim large enough to hold it in a revolver's chamber, and the bullet is most likely not the correct diameter.
44
Korth
NO!!!!!!!!!!!!!!!!! DO NOT TRY THIS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Derringer 2 Shot, 357 Mag, SN 929, what is the value
357 case is @ 1/10 of an inch longer.