Bore Tech Patch Loop - .17-.20 Brass Free Alloy
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Bore Tech's innovative Proof-Positive Patch Loops eliminate the annoying false indication of copper fouling. It features a proprietary alloy and secondary treatment process, making it 100 percent brass free and 100 percent barrel safe. This alloy is as soft as brass but boasts an exceptional tensile strength to prevent bending and snapping under the force of a tight patch.