The Seecamp .32 acp has a magazine that was restricted to hollow point ammunition to help prevent rim lock, will not accept the longer ball ammo.I carried a 32 ACP for a while and also decided to carry FMJ. At one point I'd tested many of the defensive offerings for said including Underwood which is a "external hollow point". Curiously, all of it suffered from rim lock after about three rounds in every magazine. I don't know why but I guess it's a common issue with hollow points in this caliber- FMJ ran without issue.
Rim lock bad. Hollow points good;