Everytime I start talking about the 357 sig and how everyone liked the stopping power of the 357 magnum, A guy posts that the CA CHP likes their 40 S&W over their old 357 magnum. Well I did some research. The S&W Revolver was the side are for CHP loaded with 38 Specials. However, a few carried 357 magnum ammo. After a terrible incident in 1970, CHP mandated only 38 special 110gr +p+ ammo be used. The thought was that the officers did not know how to handle the 357 mag and made that incident worse than it might have been. In 1990, CHP switched to S&W pistols and the 40 S&W cartridge. If CHP thought that 40 S&W was more effective than a 38 Special 110gr +p+ I totally believe that. However, they could not be comparing the 357 mag, which had not been used from 1970 to 1990. In an effort for full disclosure, a few CHP officers in northern CA where alowed to carry 357 mag ammo if they qualified with it in the late 1980's. But I understand that was very few officers.