I've used plain old cotton patches rather than bore-mops, as long as the patches fit relatively loosely in the bore.The biggie, in my experience, is is not the particular applicator, but being sure the DBC ends up in a thin layer through out the bore. (As a side-note, have seen plenty of "experts" who think a really tight patch works better both for cleaning bores and applying DBC. Instead it means most of the solvent or DBC is squeezed out of the bore.)
