Thread: Any ideas?
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Old 05-04-2021, 12:09 AM
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ar15barrels ar15barrels is offline
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Originally Posted by nedro View Post
So, the cartridges will still have some dust/debree left in them, but nothing to worry about. Correct?
The remaining dust on the cases acts as a dry lube to keep the brass from galling to the sizing die or the expander button.
Galling is a common problem that wet tumbled cases have if the owners don't add some lube to the inside and outside of the cases before sizing.
Rifle cases need to be lubed anyways, but straight wall pistol cases like 9mm, 40, 45, 38/357 can all be sized in carbide dies without any lube.
The dust from dry tumbling is enough to keep them from galling.
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