The Hoppe’s No. 9 Foaming Bore Cleaner quickly and effortlessly dissolves and removes copper and powder residue. Its superior cleaning formula does the work for you, no brushing or other mechanical cleaning necessary. Orange foam will turn blue indicating copper removal or black indicating powder removal.
Hoppe’s 907 No. 9 Foaming Bore Cleaner 3 oz Spray
$10.55
129 in stock
Engineered for Extremes
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Engineered for Extremes
The Vault — Where Education Fuels Better Decisions
The Vault is the engine behind Pyrost. It’s where we publish deep-dive articles, field-tested reviews, instructional videos, advocacy content, and wild-game recipes — all designed to help you learn, verify, and apply what actually works.
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