I acquired a SW .357 mag which had in box with it about a hundred rounds of .38 spl. Now, I know the .38 ammo is perfectly acceptable to shoot in the .357.
My question is: Why have a .357 mag if you are shooting .38 spl? Why not just shoot .38 spl ammo in a .38 spl revolver??
The previous owner was a "reserve" deputy and it might be that he was given the .38 spl ammo for the job. But that's just a guess.
Any other ideas?