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Military surplus .303 ammunition question
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01-09-2016 09:54 PM
# ADS
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Contributing Member
The vertical striations in the cannalure are part of the machine process to hold the lead core onto the jacket, as for the gunk I have no ideas.
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Advisory Panel
The black gunk is called asphalt(um) - a traditional waterproof sealant and adhesive.
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Thank You to Parashooter For This Useful Post:
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Advisory Panel
The black can be easily removed by spraying the bullets with brake cleaner and running them back and forth in a towel to dry. I've done lots...
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Thanks, everyone! I was wondering if it was some sort of waterproofing. I'm surprised it was still pliant after all these years, some of these rounds were manufactured in 1937!
As far as removal, I just attacked it with a brass-bristled brush after tumbling them for two hours.