This is why I spend a lot of time on cartridge names when I teach.
.38 ACP is *NOT* .380 ACP, but 9x19 NATO *IS* 9mm Luger!
and .218 Bee, 220 Swift, .223 Remington, .224 Valkyrie, .222 Remington, and .222 Remington all have .224" diameter bullets!
and 9x23 Largo, 9x23 Winchester, and 9x23 Steyr are all different and non-interchangable!
.38 ACP is *NOT* .380 ACP, but 9x19 NATO *IS* 9mm Luger!
and .218 Bee, 220 Swift, .223 Remington, .224 Valkyrie, .222 Remington, and .222 Remington all have .224" diameter bullets!
and 9x23 Largo, 9x23 Winchester, and 9x23 Steyr are all different and non-interchangable!