The breakaway rig is not that common of a rig, but it is used for catching larger fish in deeper water. With the 3-way swivel, anglers attach a leader of line to the hook and to the weight. The leader that goes to the weight will typically be in the 6 to 8 pound test range. The main line and the leader of line that attaches the hook will typically be in the 40 pound test range. With a heavy weight in the 4 to 6 ounce range, this rig should be ready to go. When an angler is fishing for big tarpon, grouper or some other big saltwater fish, they may use this rig. When they set the hook on the fish, the weight should snap off the leader with the lighter line and the angler gets to fight the fish without the weight getting in the way.
See Also: 3-Way Swivel Rig