Yessir Bob! My Granny shot and carried when on her horse an 1849 Pocket Pistol. .31 cap & ball. she could "shoot".....! This was up thru the 1960's. She kept it shooting and cleaned it and shot it daily. fwiwI have been regaling folks on Facebook with stories of long ago. Much of my family history goes 'way back in Tennessee, and from that I've heard stories from my mother and cousins. I knew my uncle told me the first cartridge gun he ever shot was the M1903 Springfield he trained on during World War I. And another uncle carried a Colt Navy (cartridge converted or not, I never knew) while making his rounds at night on horseback. And my former hunting companion, who lived in Mississippi and hunted for the restaurants, used a cap-and-ball rifle well into the 'Thirties.
So, apparently, as long as it fired and killed game, why bother getting a new gun?