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Old August 28, 2020, 12:48 PM   #8
Senior Member
Join Date: October 16, 2014
Location: Iowa
Posts: 1,367
Try the smash test one a couple of the rejects. Smash the bullet with a hammer and see if the coating flakes off or otherwise starts coming loose. If the powder is not cured / baked correctly it can come loose and cause leading.

I have some powders that go on real light and have never had a problem as long as they are baked for the right amount of time and temperature. I try and knock as much powder off as possible when coating. I want a light and even coat.

Sizing the bullets will not cause the coating to come loose If the coating was applied correctly. If the coating comes loose in a sizing die that is not a good sign and it will surely lead a barrel while traveling down the bore.
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