Bore cleaner for large caliber guns

Bore cleaner for large caliber guns.

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Previously:

https://www.homemadetools.net/forum/...9733#post89911
https://www.homemadetools.net/forum/...391#post127204
https://www.homemadetools.net/forum/...7129#post85088
https://www.homemadetools.net/forum/...5576#post82133

Bore cleaner for large caliber guns - GIF