The size of the bullet also determines its power. The larger the bullet, the more powerful it will be. Bullets are typically measured in calibers, with a higher caliber indicating a larger bullet size. A .223 Remington bullet is smaller than a 9mm Luger bullet.
When ammunition manufacturers stamp the caliber of a bullet on the side of a cartridge, they are referring to the diameter of the bullet in inches. For example, .30-06 Springfield ammunition is fired by rifles that use a .30 caliber bullet that is 0.06 inches in diameter.
The length of a cartridge also affects its size. A shorter cartridge will be thicker in diameter than a longer cartridge with the same caliber designation. For example, 9mm Luger cartridges (best 9mm ammo) are shorter and thicker than .357 Magnum cartridges even though both rounds fire bullets that have a diameter of .355 inches.
However, there are exceptions to this rule, and it’s important to always consult the manufacturer’s specifications to be sure. For example, a .22 caliber bullet is typically smaller than a .30 caliber bullet, but the .22 caliber bullet is much more powerful than the .30 caliber bullet.
In addition, bullet size is not always an accurate indicator of stopping power. A small bullet can still be very effective at stopping an assailant if it’s shot accurately and hits a vital spot. Conversely, a large bullet might not have the same effect if it misses its target or glances off its body armor. So remember that bullet size is just one factor to consider when choosing the right ammunition for your needs.
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