The .50 BMG cartridge developed for the Browning .50 caliber machine gun in the late 1910s. It is a standard cartridge for NATO forces as well as many non-NATO countries. SIG SAUER firearms are the weapons of choice for many of the premier global military, law enforcement and commercial users. Hunting rifle scopes. Ammunition. A ballistics gel test of the penetration ability of jacketed hollow points versus full metal jacket shows just how real this possibility might be. FBI testing has shown that a good defensive round will penetrate through heavy clothing and then come to a rest at around 12 to 16 inches inside the gel.
Agree with your summary. Using FMJ 95g 380 ammo in my LC380. I don't carry the LC380 (more of a fun/range gun) but it's stashed in a rapid access safe in our home "just in case". When I carried a 32ACP P-32 it was FMJ as well. As far as ammo, the FMJ ammo is usually recommended because .380's are known to be finicky with hollow points. I personally use a JHP with good results. The FMJ or JHP .380 may not give the stopping power of the higher calibers, but at 3yds for self defense purposes it is capable of a through-and-through giving two bleed out points for loss of blood.