Have used a pair of swabs twice so far. They work as long as one brushes at least twice. Easier to use than patches.
I used lots of cleaner, let the barrel soak while I cleaned the rest of the gun, then more solvent and brushed. More solvent and brushed again, soaking swab in mineral spirits and blotting as dry as possible in between. Ran through barrel again. Repeated.
Used a dry swab vigorously, then a regular dry patch to check. Came clean. Finished with an oiled patch, then a dry one.
The swabs wash nicely with dishwashing soap, and look like new after blotting and drying. I don't know how long they will last.