Originally Posted by PghJim
The recoil is less in the 115 or 125gr 357 sig than either the 155 or 165gr 40 S&W. The 180 gr 40 is about the same as the sig. Although I have some 40 S&W barrels, I never shoot the 40 anymore. For me it has more to do with the recoil characteristic than raw energy. With the 155 or 165gr 40, the light weight Glock twists in my hand during recoil while the sig goes directly up and back. One of the local LE departments that shoots at my range is have problems with hand and wrist pain which they believe is due to practicing with the 40. They use the Ranger T 165gr load, but they are contemplating a caliber switch.
That the muzzle blast of the .357 Sig is very noticeable.