Safe to Shoot in a 7x57 Spanish Mauser M1916

[Daan Kemp]

Don't ever use somebody else's reloads. You don't know what the loads actually are without breaking them up and checking each load.

What is safe in your firearm with your reloads might not be in somebody else's firearm.

I would disassemble them and use the cases and bullets. Dispose of the propellant.