The .357 has a longer case and a heavier bullet; it is identical to a .38 in diameter but far more powerful. This is why a .38 will fire in a .357 but not the other way around.
Yes.
Both terms describe the diameter of the bullet in decimal parts of an inch. For example, a .357 bullet is 357 thousands of an inch in diameter and the .45 bullet is 45 hundredths of an inch in diameter. These labels of bullets are most common in the United States. Much of the world refers to bullet sizes in metric terms, i.e. 9mm means a bullet that is 9 millimeters in diameter.
The outside of the cartridge case is .38. The .357 bullet fits inside the cartridge case.
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.
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.
Generally speaking, the .45 caliber bullet is larger in diameter and heavier than a 9mm bullet.
No, there are .357 caliber bullets that are not magnum, but they are in the minority.
It is a bullet for a .22 caliber rifle which is very quiet as the bullet travels slower than the speed of sound
The .40 caliber bullet is a little larger than a 9mm Lugar bullet: a little wider diamter and a little longer in length. The .357 caliber is a longer round than both. === === 357 mag and 38 spcl are both .357" diameter, 9 mm is .355" 40 s+w and 10 mm are the same at .400" diameter 357 mag bullets weight range 110 to 180 grains 40 s+w bullets weight range 155 to 200 grains both calibers have advantages and disadvantages but are both excellent - 357 tends to be used in revolvers and 40 s+w in autoloaders but there are exceptions - 357 will tend to give better accuracy and longer range but 40 will hit harder at shorter ranges due to heavier weight and larger diameter - but the 357 tends to cause a more severe wound at longer ranges due to its faster velocity and tendancy to tumble on impact (due to its longer length) all things considered neither is better, just depends on what its used for and what the shooter feels comfortable with
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what type bullet in 50 cal