Fiocchi has added the 357 sig to its pistol shooting dynamics line. Ot features a 125gr fmj at 1450fps when fired from  a 5″ barrel. I have used fiocchi ammo in the past in several calibers and never had anything but good luck with them. I have not shot any of their ammo for groups though, only using it for practice and blasting ammo due to the great price. Their website is www.fiocchiusa.com.