I've had it for quite a while. From 1998 according to the stamp on the back of the bag. I know there is no such thing as +P .40, let alone +P+. Just really hot ammo. I've fired some years ago from a Kahr K-40 (steel frame gun) and then put it in my safe until today. I realize these are not for continuous use, but as a load for SD it oughta work okay. I bought a Kel Tec Sub2000 yesterday (16" barrel) and figured a carbine-length barrel would be a good platform for these. I only have ~25 left so after a few for function I only fired 3 across the chrono. Keep in mind this is from a 16" barrel, 155gr Gold Dot, .40 cal +P+: 1543fps 1572fps 1587fps Avg 1567fps Dug out an old(er) reloading manual with a ballistics section and it should still be doing ~1050fps at 150yds and the drop is ~16 inches at that range.