Price dropped, price per 10rds. Enhanced Penetration, steel jacket and solid copper core, does not contain any lead. These tracers are intended to be used with the new M855A1 5.56 round. Penetration was far better than against steel as you can see in the last image. Most remaining ones do not have orange tips.

 Not all of these ignited tracer compound for me, but all fired and cycled just fine. They penetrate excellent, much better than regular 5.56.