Having a hard time judging just where you missed with your scattergun? It's not a problem anymore, thanks to the folks at Winchester Ammunition. The company's TrAAcker shotshells mimic the effect of tracer rounds and thus can aid shotgunners looking to improve. Want another endorsement? Check out the video embedded above, taken from a recent episode of American Rifleman TV, the Outdoor Channel program produced by our friends at American Rifleman.