Been looking at some chokes for my Mossberg 835 turkey thug 12 gauge and thinking about the carlsons long beard XR choke because that's what I like to shoot. The diameter is .683 and that seems very open to me when I hear most guys shooting .665 or .660. I looked through all the 838 diameters he has on they're all very open compared to other brand guns. All .670 or higher.
Is this something to do with Mossberg 835/935 threads or the guns themselves? Thanks for any info on the choke or info on the diameter of all 835 chokes I've seen being larger.