So Wikipedia has these performance charts for each caliber that sample various rounds. It's kind of interesting to compare and contrast them. One thing caught my eye: the "BPW" value for Federal Classic 125gr .357 Magnum is almost twice that of anything else @ 1487 psi, including other .357 Magnum loads! The TSC (temporary stretch cavity) is also massive at 79.8 cubic inches. Apparently BPW is related to penetration. More penetration = lower BPW. Still, I don't get how that load can be so high. On a different note, the temporary stretch cavity for .45 ACP is quite a bit smaller than other calibers, even 9mm. Can that be accurate? Wanna kill these ads? We can help!