These discreet strings in the core give it a much higher abrasion resistance and as a consequence, the cord can withstand more activity from the game. You can also use the inner cords as individual snare lines or even as fishing line in an emergency. The final and strongest snare line is braided steel cable. It is frequently found on illegal bear snares and will hold animals of that size. It is also exceptional for deer sized animals.
Some specialty sporting goods stores and catalog companies carry commercial snares.
Snares like the Thompson snares have proven themselves in the field for many years. The current effort to stop trapping in the United States has resulted in some difficulty locating sources for commercial snares. Snare loops and locks. The business end of the snare is one of the most critical parts of the snare unit. Snare lines take a lot of abuse once the animal is captured.