LCP 380 is my primary most carried weapon, but I want to, ney, I need to know what it can really do. I've been looking all over youtube and searching google, but can't find any definitive test on shooting through leather. A biker's thick leather jacket is a common enough item to possibly encounter. Will it stop a 380 enough to seriously reduce the effectiveness. I've found quite a number of test videos... 1) through a slab of ribs and then into gel. Went through the ribs and then 6" into the gel (result = effective) 2) through 4 layers of denim and then into gel. On one test, the denim clogged the hollow point so it didn't expand. The clogged bullet acted like a regular flat nose FMJ and actually penetrated further because it didn't expand (result either way = effective) 3) through a light leather jacket into a water jug. This one didn't tell me anything other than a light leather jacket does nothing. I like the gel tests better because you get a more precise measurable result. (through a light leather jacket = effective) Fine, plenty of videos showing the 380 as effective, but still doesn't answer my question. Here's the test I want to see: Thick leather jacket, then cotton sweatshirt, then slab of ribs, then gel. I'm left guessing on whether the 380 would be effective through that. I'm sure it would go into the ribs, but if the ribs stop it, I would declare it uneffective. Another must do test is a nice very think winter coat, then a sweatshirt, then some long-johns, then a slab of ribs, then gel. Would it be effective into that or stop at the ribs? I don't know. I'm left to guess if there are some situations where 380, even well placed into the chest could be uneffective because of common wear items. None of the tests I've found are adequate to answer for sure. For now, it's LCP in the summer and LCR in the winter. I'd like know when for sure the LCP can be counted on though.