A bore cleaning tool comprised of a jag having a central body, a spiked tip near a first end of the central body, and a threaded portion near a second end of the central body. The central body may have a plurality of shallow reservoirs and deep reservoirs. The plurality of shallow and deep reservoirs can repeatedly alternate. Each of the shallow reservoirs can include a pair of flanking ridges with a corresponding central portion, and each pair of flanking ridges can have a larger radius than a radius of the corresponding central portion. A patch can be connected to the spiked tip so the bore cleaning tool can be used for cleaning the bore of a firearm barrel.