Ammunition & Hand Loading > Cartridge and Shotshell reloading

Cleaning brass after sizing

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unfy:
I use TC dies wherever possible as well. Straight wall cases are a breeze. 357mag, 40, and 45 generally don't need any lube indeed :).

The 357sig case is a small necked cartridge, so I'm thinking lube will be necessary.

Sadly most of the factory brass I've fired is nickle plated. I've heard stories of the plating flaking off and getting embedded in some dies, causing scratches and rough operation of the press. Someone mentioned having some luck throwing plated brass with corncobs material into a rotary tumbler for days - being able to polish the plating away.

It'll be a couple weeks before I order a 357sig barrel, but I'll get a rotary tumbler before then and try it out - reporting results naturally.

maanbr:
You can actually get away with doing 357sig without lube.  But, I've been loading it for a few years and find things run smoother if you squirt the batch first with some One Shot.  You don't have to remove the One Shot lube after sizing but I will from now on.  Most of my 357sig brass will not shine up anymore in the tumbler due to leaving the lube on there and then handling and firing them.  The bucket of soap water does a good job here as well!
Also, I do get scratches on my brass from my dies with or without lube.  If I take the die apart and look into I can see the rough spots.  Can't seem to clean them out of there.  Have not noticed it actually harming the brass as far as strength or length of life.

unfy:
Thanks maanbr. I'll prolly adopt that for when I start 357sig :)

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