Remington lists that choke at .665 constriction, which doesn't seem that tight to me for what they call it. However, that's the constriction my Carlson has and it shoots tighter patterns than another one (can't remember who made it) I started with that is marked as .645. That shows that tighter isn't always best.
Last edited by Topgun 3006; 01-06-2013 at 08:16 AM.