Impossible to answer without knowing what bullet weight is.
No.
Yes and no. The. 40 S&W is not interchangeable with the .357 Magnum, if that's what you had in mind. Most .357 Sig pistols can, however, but a .40 barrel will have to be dropped in in place of the .357 Sig barrel.
No. The Glock is an auto pistol. With the exception of the .357 Sig, auto pistols do not shoot .357 cartridges.
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.
357 sig is a cartridge that is a relatively high speed handgun round. It is not a pistol itself, many, many pistols are chambered for this cartiridge.
.357 Sig and .357 Magnum are not even close. .357 Magnum is a rimmed, straight walled cartridge for use in revolvers. .357 Sig is a rimless, bottle necked cartridge used in semiautomatic pistols. They don't even use the same bullet diameter. Other than the name, there is almost no similarity. In other words, NO.
No. You can get a Sig P229 that will fire .357 Sig, but that is not the same as .357 magnum.
No. The two cartridges are not interchangeable. The .357 Sig got its name because it was an attempt to replicate the performance of the .357 Magnum cartridge in a semi-auto pistol. This was done by taking a 9mm bullet, and placing it in a necked down .40 S&W casing, whereas the .357 Magnum is a much longer, and rimmed, cartridge, developed simply by lengthening the .38 Special.
a 357 cal. revolver cartridge WILL fit a colt 357 python. Also, a 38 special will fit a 357 cal. python. The 357 sig cartridge will NOT fit a 357 colt python................ The 357 sig cartridge ONLY fits the sig model pistol For clarity.....the sig 357 is a pistol. But, the 357 python is a revolver................
Most newer generation Glocks can shoot the .357sig in a .40S&W with a simple barrel change. You can use the same magazines. The same is true for shooting .40 in a .357 Sig. This is true with Sig Sauer guns as well. I have a Glock 23 (.40 S&W). I simple install the Glock 32 barrel (.357 Sig) which I purchased for $100. I can shoot .357 sig out of the same gun. The magazines (at least for Glock) for the .40 and .357 sig are interchangeable. You CANNOT safely shoot a .40 out of a .357 sig barrel or vice versa. A barrel swap is required. If you load a .357 Sig round into a barrel chambered in .40 S&W, it could fire, but it would probably cause damage to the gun and won't be accurate. .357 Sig has better "terminal performance" than the .40, but the .40 shells cost less which translates into more practice for the same $$$ with the .40, and better self defense with the .357.
SiG P229 in 357
The ammunition is called .357 Sig. Most pistols in .357 Sig can shoot the .40 S&W when you drop in a .40 S&W barrel.