The USP .45 utilizes .45 caliber bullets, as the name suggests.
The USP tactical since it is less bulky in size and weight.
.45 ACP
The Heckler & Koch USP .45 semi-automatic pistol weighs 789 grams (1.74 pounds) unloaded.
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.
$260.99 lol just kidding
usp 45 it has a little more range
$600-$650, depending on condition.
The most obvious different is the 10mm bullet is smaller in diameter than the .45. A 10mm bullet is .40 of an inch and the .45 is .45 of an inch. Other differences, depending on exactly which cartridge you are referring to, are muzzle energy and velocity.
Caliber refers to the diameter of a bullet. A bullet for a .38 Special is actually .357 inches across, and for a .45 auto, about .451 inches. The 45 bullet will be wider, and usually heavier. Please note that this is only the BULLET, which is the projectile. The CARTRIDGE (case, primer, powder, bullet) of the two are different size, shape, design and weight. There also is the .45 Colt bullet (often referred to as a .45 Long Colt). This is about the same diameter as the .45 auto but has a longer cartridge than the .45 auto or 38 Special.
200-500 USD
If you are talking about a .45 acp The bullet diameter of .451 equates to 11.5mm. If you are talking about a bullet used in rifle calibers (45-70) etc.then the bullet diameter of .457 equates to 11.7mm.
What about it?