Most shotgun cartridges are made to be fired from a smoothbore barrel, as "shot" can be unfold also large by rifling. A rifled barrel will improve the accuracy of sabot slugs, but can make it unsuitable for firing shot, mainly because it imparts a spin for the shot cup, https://gunnerjhfbx.win-blog.com/16142454/federal-premium-personal-defense-ammunition-45-acp-210-grain-hydra-shok-deep-jacketed-hollow-point-an-overview