I patterned tested both of these guns last Sunday and decided to make a video in the process. If you are interested in the Winchester SX3 Long Beard or the Stoeger M3020 with TSS 7, 9 and Winchester LB XR 6 then give it a look. It turned out longer than I thought it would but it does the job.
https://youtu.be/D9v2OXEtg2w
Thanks for posting the video !! Very informative. Do you know what the constriction is on the Briley stock choke ?? I'm currently shooting an IC.555 and like it much better then the stock Briley.
Thank you. Winchester told me that the Briley is .570.