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No, it cannot, as they are different rounds. Follow the link for great details, including photos of the ammunition together. https://www.ammunitiontogo.com/lodge/357-sig-vs-357-magnum/ It was my pleasure to assist you.

Shihong, no. 357 Sig and 357 Magnum are two totally different ammunitions. The difference is pictured here : ammunitiontogo.com/lodge/357-sig-vs-357-magnum/

NO they are not interchangeable the 357 mag is a rimed straight wall case for use in revolvers and the 357 rimless necked down 40 S&W case for use in 357 sig chambered pistols