If you don't have a manual, find a gunsmith and ask for help.
check it out at: http://stevespages.com/page7b.htm
Yes you can they are both the same caliber .356.
You can only use .380 ACP ammo in a .380 pistol. Period.
Best bet is to find a gunsmith
A double action pistol that chambers a .380 ACP round. AKA 9mm Kurz
Yes
To clean a Davis P-380 auto pistol, first ensure the firearm is unloaded by checking the chamber and magazine. Disassemble the pistol according to the manufacturer's instructions, typically including removing the slide and barrel. Clean the barrel using a bore brush and solvent, then wipe down the slide and frame with a soft cloth to remove dirt and debris. Finally, lubricate the moving parts lightly with gun oil before reassembling the pistol.
Small pistol small pistol primer
No.
mike
We need the model- there is more than 1 Browning .380 pistol.
75-250 USD or so depending on specifics