.40, .357sig, 9x19mm ...
FWIW; to me the .357sig isn't really as good as it once was.
Many major US law enforcement agencies are switching from the .357sig duty round to the .40S&W or the 9x19mm(9mm Luger).
The Texas DPS went from a SIG P226 .357sig pistol to the M&P in 9x19mm.
The NM state troopers converted too in 2013, from a .357sig to the M&P 9mm.
There's nothing wrong with the P229R in .357sig per se, it's just not doing anything new .40 or 9x19mm bullets can't do. Many complain about the lack of rounds & the higher prices too.
I supported the .357sig for years & considered buying a HK P2000 LEM format in .357sig but now, Id get a 9x19mm or a .40S&W.
Truth be told, my favorite defense/carry handgun round would be the larger .40Super but it never quite caught on with US gunners.
The .357sig might hang on a few more years but I think a slow decline is starting up all over the USA.