.380 auto ammunition can be a "ball" style bullet or metal jacketed hollow point.
NO!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! DO NOT ATTEMPT TO DO THIS!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Never fire ammunition in a weapon not specifically chambered for it. DANGER, DANGER, DANGER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
You can only use .380 ACP ammo in a .380 pistol. Period.
The .380 ACP is also known as the 9x17mm, 9mm Short, and 9mm Kurz. It is the ONLY ammunition which can be fired through a .380 pistol. The 9x18mm Makarov (whose bullet diameter is actually 9.3mm) and the 9x19 Parabellum/Luger cartridges ARE NOT compatible.
Yes- you use the ammunition that is marked on the firearm.
NEVER FIRE OR ATTEMPT TO FIRE AMMUNITION IN A WEAPON NOT DESIGNED FOR THAT AMMUNITION!!!!!!!!!!!!!!!!!!!!!!!!!!! Danger,danger, danger
You will have to tell us what you want to use it for.
Yes
The .380 ACP is a 9mm cartridge - 9x17mm. That is the ONLY cartridge which can be fired from a .380 pistol, and the 9x18mm Makarov, 9x19mm Parabellum/Luger, 9x21, 9x23, 9x25, etc. cartridges are NOT compatible. The Makarov cartridge actually uses a 9.3mm projectile, which is too large for the .380, and the 9x19 cartridge uses too long a case, meaning you won't get proper headspacing in the chamber, and it's designed for a locked breech pistol, generating too much pressure to be safely used in an unlocked breech pistol such as a .380. Do not attempt to use any ammunition other than what your firearm is intended to shoot.
.45 ACP means Automatic Colt Pistol. It IS .45 Auto.
Good enough for self protection and some military use
.380 ACP, and nothing else. Right now, there's something of a shortage on .380 ammo, and it's not the easiest to find at the moment.
Ruger is the name of the company that made the pistol. .380 ACP is the cartridge size. ACP stands for Automatic Colt Pistol- part of the cartridge name, as some of the first of the .380 cartridges were made for use in Colt pistols..