Texas State Troopers were the first large LE Agency in the Nation to use the .357sig Caliber as a duty weapon. They began packing Sig Sauer .226 in .357sig about 18 years ago. I know several of their Firearms Instructors and the Range Master and as far as I know, they have never had a cracked frame with their Sigs. Texas Troopers usually shoot over 6000 even before they Graduate from the Academy.
They switched to the Sig 229 DAK models about 10 years ago. Still a .357sig, but a better LE Trigger.
Most of the Troopers I know carry a .Glock .33 or .32 in .357sig for a off duty or BUG. Texas Rangers are also issued the Sig 229 DAK in .357sig, although the few old school Texas Rangers still on duty usually pack a 1911 in good ole 45acp
