frontier gander,The White ,The Knight and some older TC like the System One and Thunderhawk have a bit larger diameter barrels [I am just using the ones I have a lot of experance with as an example] and I dont trust them to keep a powerBelt or Sabortooth in place it is best to check each individual gun for that problem you dont want to find out the hard way that is moved half way down to the end of the barrel befor you shot. Lee