So i called them and they said that it is safe to shoot #4 buckshot. They also said that once you get to your bigger buck pellets (00&000) then it becomes unsafe to shoot, and you can shoot #1 buck but the pattern may not be very good due to the pellets deforming but #1 buck is pushing the limit of the choke and could be unsafe to shoot so pretty much it's a T, and #4 buckshot only choke ( and maybe some #3 buckshot reloads) as well as a turkey choke. 00 and 000 is recommended thru their buckshot specific choke.