Is cleaning brass necessary every time?

[Hntr58]

New to reloading the 5.7 round. I see everyone talking about cleaning the brass and the lacquer coating, My question is do you need to clean the brass every time you reload it? I don’t do that with most cartridges I load for. Is this critical with this one?

[panzermk2]

No not really, normally the 5.7 is pretty clean burning. Some folks though size and deprime separately lubing when they do this.
You need to remove the lube so a fast warm water simplegreen bath and rinse does the trick.

[Hntr58]

Thank you!.....you are a great help to green horns like me!!

[fredkali]

Does the case sizing lube need to be removed? What happens if you don't?

[panzermk2]

Yes otherwise it can contaminate the powder or primer.