.380 has a maximum diameter of .374. A .38 Special has a case diameter of .380. Thus a .380 does not have a way to head space in a .38 Special chamber. For the uninformed, a box of ammunition labeled .380 may appear to be correct for a firearm labeled .38 Special. – Dean Weingarten, Gun Watch.
FYI: a .38 Special cartridge has a rim which holds it in place in the chamber of revolver cylinder. A .380 ACP cartridge case is rimless, as well as being much shorter in length than the .38 Special cartridge. Therefore it would drop deep into the chamber of a revolver cylinder such that the firing pin would fail to hit the cartridge’s primer igniting the powder charge in the cartridge. This is why the robber’s .38 Special revolver failed to fire when loaded with .380 ACP cartridges. Doah!
The .380 ACP (Automatic Colt Pistol) cartridge was designed by John M. Browning in 1903 for use in the semi-automatic pistol he designed for Colt. The .380 ACP continues to be very popular today because it works very well in small pocket-sized semi-automatic handguns and still gives some punch by dint of its larger bore diameter compared to smaller “mouse gun” cartridges like the .22, .25 and .32. Cartridges for semi-automatic handguns are typically shorter than revolver cartridges since they were designed to use fast burning smokeless powders which require less volume to achieve higher velocities. Many revolver cartridges were originally designed to use black powder which requires extra volume but still gives lower muzzle velocities than comparable smokeless powder cartridges. However, to add to the confusion, Taurus currently manufactures a “snub-nosed” revolver (the Ultra Lite) that is chambered for the .380 cartridge to take advantage of the plethora of .380 ACP cartridges being marketed today and for those customer who prefer the reliability and ease of use of revolvers. Some unique design changes are required for a revolver to be able to chamber and extract a "rimless” cartridge designed to work in a semi-automatic gun. Typically “half-moon” or “full-moon” cartridge clips are used to facilitate the loading and extraction of rimless cartridges in a revolver.
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CINCINNATI (WKRC) - Hamilton County Prosecutor Joe Deters said the fatal officer-involved shooting at a Fifth Third Bank will not even be taken to a grand jury. Deters said the incident "was as clean a police-involved shooting that I've ever seen."
Deters, Cincinnati Police Chief Eliot Isaac and Hamilton County Coroner Lakshmi Sammarco released the May 25 surveillance video from inside the Madisonville bank. Terry Frost, 20, was killed.
Deters says it took just two seconds for Frost to enter the Madison Road bank and vault over the teller's desk. He went straight to a teller who was counting $90,000 from an ATM. Deters says "it would be hard to believe he didn't know that money was sitting there."
Officer Kevin Hankerson was off-duty and working a security detail at the bank. He quickly raised his gun toward Frost, who was pointing a grocery bag-covered hand toward the teller. Hankerson pushed another bank employee out of the way and fired two shots at Frost, as Frost was trying to make his escape.
"Officer Hankerson committed a great act of bravery in his actions and he should be commended for what he did," said Deters.
Sammarco says he was shot in the back with an exit wound in his chest. It didn't hit an aorta, which is how Frost was able to run off. He was found dead in a wooded area on Ebersole.
If Terry Frost did try to fire his gun, he was unsuccessful because he had the wrong type of ammunition in his gun. Police confirmed to FOX 45 sister station Local 12 in Cincinnati that Frost was carrying a .38 Special but had loaded .380 ammo.
Cincinnati Police Chief Eliot Isaac said there had been an attempt to fire the gun but they can't be sure it was during that robbery at the Fifth Third Bank on Madison Road.
Frost's father said Thursday that he knew his son made a bad choice but doesn't believe he should have died. "The 20-year-old man committed a senseless and violent act," said Deters, "but he's still somebody's kid. I think the chief will agree with me, it's still a very sad time for his family."
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