Was wondering when the tackle box idea would show up. I use the same. Huge top that has a hinged lid for patches in bags, bottled cleaning liquids and aerosol cans of oil, scrubber etc. On the front are drawers with several small compartments on each drawer. Jags, brushes, extra rings, bases, bolt handles, bolt bodies, bolt parts, screws, Allen wrenches, etc etc. One bottom tray with larger compartments for bore guides, cleaning rod kits and other larger items. I still carry a range bag (large) that carries all my shooting gear. My range is a drive up type meaning back my truck up to the concrete benches and unload or work from truck. Maybe 20' from shooting  bench's to truck bed.