Not contemporary, but here’s a photo to stoke the imagination:
From a 16th C manuscript. Notice the patched round balls and ramrod accesories. There is even a patch cutter and small container for storing grease. Capandball YouTube goes into great detail on this in his new video. He even demonstrates an original military matchlock barrel that was x-rayed and found to contain a patched round ball.
Some claim using patched roundballs in smoothbore guns is a modern 20th century thing only.
Yeah, they’re off by about 400 years.