410 shotshells in the 19th century. Here in the States, the J. Stevens Company (now Stevens/Savage) engineered a pocket shotgun chambered in .44-50 and .45-65. In 1908 Marbles delivered an over/under ...

While such shotguns are likely not going away any time soon, many shooters today, from top-level competitors to hunting traditionalists, choose to carry a double-barrel, break action shotgun.