Can you fill an empty jug with water ?
That said, at the range, I always flush out the bore with a cleaning patch soaked in Moose Milk (Ox-Yoke Bore Cleaner), for several strokes while also ensuring that the cleaner dribbles out of the ignition hole - then dry the bore with as many clean/dry patches as it takes, before lubing the bore via running in another new patch, loaded with BoreButter 1000+.
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