the 40 cal is a little bigger then the 357
No. The 357 SIG magazine will not fit in a 40 caliber Glock such as the model 22.
No.
No
No
The .45 caliber is bigger in diameter. If you mean weight. The .45 caliber is generally heavier. However there are some lightweight .45 caliber bullets that are lighter than .357 caliber bullets. Generally speaking .45 caliber bullets weigh between 180 - 230 grains. While .357 caliber bullets generally weigh between 158 - 180 grains. If you are talking about diameter, the .357 caliber bullets are approximately 0.357 inches in diameter. The .45 caliber is approximately 0.450 inches in diameter. Again, using this measure, the .45 caliber is the larger bullet.
Yes, a 45 caliber bullet is bigger than a 40 caliber bullet. A .45 is0.45 inches wide in diameter and a .40 is 0.4 inches in diameter.
As a strictly mathematical calculation, since velocity squared times mass equals energy, the .357 Sig should have more "energy" to dump into a target because it's got more velocity and velocity is worth more than weight when it comes to energy. But the .40 makes a bigger hole, will open-up or mushroom way bigger than the .357 will, and should penetrate deeper than an identical bullet in .357 caliber.
357 has more stopping power. It also has quite a bit more recoil, though.
The .40 is larger in diameter and (normally) has a heavier bullet.
The P228 comes both in 9mm and .40, as do most modern light handguns, along with .357.
The term 'caliber' can refer to the actual diameter of the bore in inches or to a name given to a particular cartridge. The name may reflect the actual caliber, or not. In the case of .357 Magnum the name is the true measurement, while cartridges like .38 Special and .38/40 Winchester, also known as the .38 WCF both refer to .38 caliber while the caliber is actually .400" for .38/40 and .357" for .38 Special.What this means is that there are multiple guns that take different cartridges that can be described as ".357 caliber firearm". This would include guns chambered for .38 Special, .357 Magnum, .357 Maximum, and so forth, including several rifle cartridges, but, ironically, not guns in .357 SIG.The .357 SIG cartridge is an approximately .40 caliber case necked down to .355" diameter. The .355" bullets are used in the 9mm family of ammo (9mm Luger and .380 ACP/9mm Kurz).The name is a marketing gimmick. It alludes to the idea that .357 SIG gives similar ballistics to the very popular .357 Magnum revolver cartridge. The difference is that the shorter rimless case of the .357 SIG makes designing semi-automatic pistols for it much easier.SIG Sauer does not presently make firearms in .357 Magnum, but does offer several models in .357 SIG.