No. The diameter is the same, but the bullets still differ in length and weight.
The .380 is a 9mm bullet. But, going with the assuming that you're comparing the .380 ACP (9x17mm) against the 9mm Luger/9mm Parabellum (9x19mm), the answer would be no.
how far does 380 bullet travel
The heaviest bullet in my reloading manuals for the .380 is a 120 grain cast bullet.
Noop. A 380 is about 35/100th of an inch (diameter of bullet), or 9mm A 32 is about 32/100th of an inch. This is 8.1mm
NO!! Although the bullet diameter is the same, the case length is different and should not chamber in the 380 caliber handgun.
380 and 9mm ammunition IS NOT INTERCHANGEABLE.
It depends on the bullet weights. The 9 mm (AKA 9x19 mm, 9 mm Luger, or 9 mm Parabellum) is faster than the .380 ACP (AKA 9 mm Kurz) except when you compare the lightest .380 bullets to the heaviest 9 mm bullets. If you compare the same bullet weights in each, the 9 mm is always faster.
.355
No, the bullet will not seat.
360 mph
.355 inches.
9x17mm, otherwise known as the .380 ACP.