Most shotgun cartridges are meant to be fired from a smoothbore barrel, as "shot" can be unfold also extensive by rifling. A rifled barrel will increase the precision of sabot slugs, but can make it unsuitable for firing shot, since it imparts a spin into the shot cup, causing https://winchester-ranger-9mm-lug14702.yomoblog.com/42151799/remington-pheasant-ammunition-12-gauge-2-3-4-1-1-4-oz-no-further-a-mystery