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Old January 19, 2012, 11:25 AM   #2
Tuzo
Senior Member
 
Join Date: June 14, 2007
Location: Louisiana
Posts: 725
Cast bullets have one or more lube grooves. In your case red paint in the lower groove is not paint (at least it should not be paint) but a waxy lubricant required for proper firing. The higher groove is for a roll crimp.
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