Sorry, I can't find a link to any .357 Sig JHP ammo available for order, but it's all way more in price than the PPU.
Ok, first we're mixing things a bit from what I actually said.
I didn't say that .357SIG
JHP ammo was cheaper than 7.62x25
JHP ammo. What I said about JHP ammo was that "you can get premium self-defense ammo (expanding ammo), something not so easy to do with 7.62x25." SGAMMO, right now, has a good selection of premium self-defense .357SIG ammo in stock. Yes, it costs more than the PPU, but then again, PPU JHP has kind of a spotty reputation--if you look at several penetration testing results, it often doesn't expand or has inconsistent expansion. Personally, I wouldn't classify it as "premium self-defense ammo". Off the top of my head I don't know anyone making ammo for the 7.62x25 that I would feel comfortable calling "premium self-defense ammo". I'm not saying there isn't any, I just don't know of any right this second and I know that back when I was using a 7.62x25 pistol for self-defense I couldn't find any.
Ok, about cost. What I said about cost was that there is "modern, non-corrosive ammo for the 7.62x25, but it costs the same as (often more than) comparable .357SIG and the available selection for 7.62 is much smaller." If you look at SGAMMO, again, their PPU FMJ ammo in .357SIG and 7.62x25 ammo is about the same price. About 40 cents a round. I probably should just have said it costs "about the same".
Yeah, if I'm buying a modern pistol, I may as well just get a 9mm.
I was trying to stay with your requirement for something that would penetrate the lower levels of body armor.
IDK, I mean, 7.62x25 is known for defeating all soft body armor and that may come in handy.
Right. I thought that was a concern for you. Which is why I brought up .357SIG in the first place. "Based on my read of the NIJ body armor standards, my
guess is that .357SIG FMJ from a 6" extended barrel would probably offer the about same penetration capability."