Does the Trulock Tatical have any choke at all?Or is it a breacher?I also wanted to ask if there is a extended cylinder choke made for the 930? I have only found improved cylinder and need a extended to clear a Nordic plus 6.I hope to try Dixie slugs and know a cylinder bore is needed.As much as shotgunners use slugs in smooth bores I still have not seen much use or info on rifled choke tubes.It seems to be such a good idea but yet so little used.I am still going to try one and load and cast a Lee drive key 7/8 oz slug with the goal of 6" groups or less at 100 yards.