This nipple gives the owner of T/C's muzzleloaders the option of using the much larger musket caps. Musket caps produce ignition fire that is 7000X hotter than standard No.11 percussion caps. Made of stainless steel, these nipples are carefully machined and long lasting. Threaded ¼ x 28 and fits Fits T/C Traditional cap locks (Hawken, etc) and T/C in-lines (except Encore 209x.50, TC Scout and Omega). For more Muzzle Loading Accessories Click Here.