I'd like to remind you all, this is a technical forum. If you want to post Massad Ayoob articles that claim Ed Sanow is a "bestowed expert", there is a General Discussion forum.

I'm serious though!
Before someone posts the infamous Massad Ayoob article many have dubbed ".357sig Versus Semi", I advise you to get ALL the facts of that shooting, not the ones that where nit-picked.
As for Texas DPS, they switched from .357mag revolvers to the Sig P220. Then they switched to the Sig P226, P229, and possibly P239 in .357sig. When using the P220 in .45acp, they used 230gr Fed HydraShok. When they went to .357sig, they chose the Speer GDHP. One of the eraly reccomendations was instead of switching to .357sig altogether, they switch their .45acp carry loads. They ended up doing both.
As for the topic at hand, if I have a 586 or 686, my choice would be the Winchester 180gr Partition Gold. This isnt made anymore since Winchester decided to be dumb, and diss the bullet designer. If you look around though, you can still find it. That said, my next choice is a tie between Federal's loading of the Barnes bullet or Remington's 158gr+P LSWCHP. Say I come across a 50rd box of the Remington 158gr+P LSWCHP and a 20rd box of the Federal 140gr XPB for the same price. I'll take that .38spec load.