Boutique ammo? How about Federal they started out small or corbon or any of the other smaller mfg's with a good rep? I run Underwoods 124 +p+ load and have fired quite a bit in my 19 and 26 and it has been flawless and quite accurate to boot, Is it s a 357 sig? Nope but the 357 sig is not a 357 mag either. A warm 9 midweight will handle just about anything that I'm likely to get into it with.
Si vis pacem parabellum