I've been reading alot about the .357 Sig round since I'm considering buying a X Change sub compact .357 Sig kit for my P250, so there's some questions i have about this round. .357 Sig and the .357 Magnum Hydrostatic shock: From what I've read, the .357 Magnum round flying at 1500 feet per second or greater and hitting the target with 500 foot pounds or greater, causing a ballistic pressure wave level of 500 PSI or greater, can cause faster incapacitating effects. I've read about where the .357 Magnum round would hit the target, meeting all of the above data in terms of Hydostatic shock and Hydraulic effect, the round would hit the target in the chest and in some cases with enough force that would cause neural damage and brain trauma such as brain hemorrhaging from the round impacting the chest. Since the .357 Sig was designed to mimic the .357 Magnum, has it been able to produce the same effect's as the .357 Magnum in real life street shooting's were the results are identical to the .357 Magnum shooting's? Which rounds in the .357 Sig have been proven to cause the Hyostatic shock in real life shootings? Law Enforment Use I've read of several shooting's involving the Virginia State police where each time the suspect was stopped instantly with a single shot using the Speer Gold Dot 125 Gr. Is there any cases where the .357 Sig round has failed in a real life shooting and if so, could anyone provide the name and weight of that round? I understand the Texas DPS uses the .357 Sig and has had good luck with it, which round do they issue? Wanna kill these ads? We can help!