The main difference is that the TSW slide and frame were made as a matched set and have the same assembly number on each.
No
As a general rule, no.
NO!! Although the bullet diameter is the same, the case length is different and should not chamber in the 380 caliber handgun.
7.65 is the same as .32 ACP
The same laws apply to boats as apply to vehicles.
Yes you can. The bore is the same size.
pistal - although the spelling is different - pistol is a handgun
Killing people, the same as any other era's handguns.
Assuming it's 7.65x17 Browing...it's the same as .32 ACP.
6.35 (or technically 6,35) is the same as .25 ACP.
21, the same as it is throughout the entire United States under federal law.