Hi all. I stumbled on your site by accident while searching about sub gauge misfire issues with the B725. There seem to be many while using tubes. I have a 12 gauge with a set of 28 gauge Briley tubes and they seem to work fine as long as the gun is solidly shouldered. I am a long time Browning lover. I have a Citori Ultra XS, new style T-Bolt, BL-22, 12 ga BPS, and a Browning Gold. Not a huge collection but a substantial investment for me. I am a Benefactor member of the NRA and a member of the NYS Rifle and Pistol Association. I am a active Skeet and Sporting Clays shooter.