Gun shops. That can include SOME sporting goods stores (that have a dealer's license) and SOME pawnshops (that have a dealer's license)
Walther, Colt, Ruger and S&W are good places to start.
Nothing. However, a Bernadelli 380 would be in the 10-200 USD range
50-175
No. You cannot fire anything other than a .380 ACP cartridge out of a .380 handgun.
the 380 is a 9mm short
100-1000 depending on exactly what you have, its condition, box, accessories, papers, engraving, etc..
It depends on the model, but most handguns will have a takedown lever or pin of some kind. Check the owner's manual for the particular model you have.
It is a .380 ACP caliber handgun produced by Colt Arms. It is a .380 ACP caliber handgun produced by Colt Arms.
Any handgun dealer can order one if they are not in stock.
No
No! DO NOT ATTEMPT!
NO!! Although the bullet diameter is the same, the case length is different and should not chamber in the 380 caliber handgun.