What is the diameter of a 40 caliber bullet?

10.2 mm

.40 S&W
Bullet diameter .400 in (10.2 mm)
Neck diameter .423 in (10.7 mm)
Base diameter .424 in (10.8 mm)
Rim diameter .424 in (10.8 mm)

Is 9mm and .40 the same diameter?

The main difference between 9mm and 0.40 calibers is the size of the bullet. Converting 9mm to inches, you get roughly 0.35, significantly smaller than the 0.4 inch diameter of the . 40 caliber.

Is 40 caliber and 10 mm the same diameter?

40 S&W (Short & Weak, according to some) shares the same case-head diameter as its big brother at 0.424-inch and both headspace off the case mouth. The . 40 S&W is sparked by a small pistol primer, while the 10mm uses a large pistol primer.

Is a 10mm the same as a 40?

Let’s start with the basics: 10mm is the metric equivalent for . 40 caliber, or 10 millimeters equals . 40 of an inch. Therefore, both bullets are the same diameter.

Is 9mm and .40 the same?

40 caliber cartridge typically sports a heavier bullet with loads between from 135 to 180 grain, compared to between 115 and 147 grain for the 9mm. The heavier bullets of the . 40 caliber will be a little slower in velocity. The .

What’s the difference between .40 and .45 caliber?

A . 40 fires bullets with a velocity between 950 and 1440 feet per second, depending on the model. A . 45 fires bullets with an average velocity between 835 and 1150 feet per second.

Can you shoot a 40 cal in a 10mm?

A revolver in 10mm Auto that utilizes moon clips will allow safely running the . 40 S&W, as the moon clip serves as the rim on straight-walled pistol case. It is advisable when running .

What is more powerful a 9mm or 40?

40 S&W Comparison. At its most basic, it’s reasonable to conclude that the . 40 caliber S&W has more stopping power, kinetic energy, and superior ballistics to the target, which will lead to larger and potentially more lethal wounds (although 9mm ammunition is powerful in its own right).