Trying to give the guy's fighting these guns an answer to a problem, ive never fought a shotgun to pattern like I have my 26" 1187. Seemed all the popular choices were dissapointing at best. Do yourselves a favor and buy an nonported undertaker they can be had easily and are inexpensive. I believe they are .585 may be something to that more open but I can tell ya there is no need to continue looking for a choke. I know guys will want pics but im not even sure I have any. If I catch a warm day soon il shoot it but, the undertaker made it mean and turkeys heads Really bloody... They are sure fun guns to shoot. I just remember loving it and hating it at the same time. An undertaker will help with the hating it part. Shooting fed 7s of course. If your not you should be