Callfire@ 410 Gauge Gun Cleaning Cleaner 410ga Hunting Q01 Finally, the main floss, with 160 times more floss than a standard cleaning patch, super-scrubs the bore to a mirror-like finish. Crafted with a series of built-in brushes, it combines all the cleaning processes into one simple step, effectively cleaning your bore in a single pass. Net Weight:60g First, an initial floss area brushes the action then removes loose grit and debris in the bore prior to the main scrubbing. This is definitely the world's fastest bore cleaner.