When cleaning bores on open action arms,
The bare rod goes in from the muzzle, then the patch is inserted in the slot, carefully folded just so
The solvent or oil is applied, and the patch is then pulled through.
Some "debris" is at times pushed into the magazine or other breech regions when the rod goes in, to be cleared out later. but... That's the way I do it!
Evils lurk in all dark corners!