The stopping power.net fprum guys swear by DPX.
I've read in the past that the 9mm DPX has worked well
in actual shootings.
I do know of one dynamic stop with the 125 Sierra
.357 SIG load from Cor-Bon.
Those guys love CB and swear by DPX, as do some real world Experts ..
You are carrying the exact load that I'd use in a .45 ACP
TOP GUNS 357 SIG Club #8163
Go Red Sox!