There are various difference, but the most common answer would be the .45 is .05 of an inch larger in diameter than a .40.
.40 Smith & Wesson is a 10x22mm cartridge, whereas the .45 ACP would measure 11.65x23 in metric measurements. The .45 is a larger round, and also a much slower round.
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.
The main difference between a 9mm and a .45 caliber bullet is the diameter. A 9mm bullet has a diameter of 9 millimeters, while a .45 caliber bullet has a diameter of .45 inches. The .45 caliber bullet is larger and generally heavier than the 9mm bullet, resulting in differences in recoil, speed, and stopping power.
A glock 45 is a .45 caliber pistol, which fires a 45 caliber round. The glock 10mm fires 10mm rounds, which are .3945 caliber. Which is slightly smaller than the .40 caliber. Both of the two calibers, .45 and 10mm, are the 2 mosst expensive caliber weapons of glock. A 10mm is used mainly for law enforcement. You can fire rapidly with a Glock 10mm and be more accurate than you would with a Glock .45 caliber simply because the glock 10mm will have less recoil than the Glock .45 will. The Glock .45 will most likely do more damage though. Please Correct Me If I Am Wrong. Thanks, Bronson.
No
Either platform can be larger than the other. The 45 has the larger projectile. Caliber is defined as the diameter in fractions of an inch, so .40 caliber is smaller in diameter than .45 caliber. Caliber can also be defined in the metric system, measured in milimeters. The .40 caliber cartridge is equivalent to 10mm in diameter. As noted, the size of a handgun can vary widely within one caliber, so it is perfectly reasonable to have a smaller handgun crafted in a larger caliber.
Neither is "better". They are each fine in their own right.
45 has the larger projectile. Size of the handgun will vary.
my opinion is the 45 ACP round has more knock down powder then the 40 caliber
difference is bullet size. Note the '45' is a larger number then '44'. So, can't shoot the 44 in a 45 nor can you shoot the 44 in a 45, the 44 is too small. It's merely SIZE...............( the cartridge cases also make a difference in that they also differ in size) 45 diameter is .451 or .452 44 diameter is .429
no, a 45 caliber is way more powerful than a 40 caliber Actually, it depends. The following is copied from another answer of mine: The muzzle energy from a .45 caliber round can vary between 350 to a little over 500 ft-lbs, with velocites from about 850 feet per second to over 1000 FPS. The .40 caliber round can range from about 480 to about 570 ft-lbs of energy with velocities ranging from about 1000 FPS to about 1400 FPS. So, in short, it depends on the specifications of the particular cartridges you are comparing.