Fiocchi 556M193L Shooting Dynamics 5.56 NATO 55 gr Full Metal Jacket Boat Tail – Some of use a rifle or carbine for the protection of our communities in our professional lives, others prefer them to defend our homes and loved ones, and some of us fall into both of those categories. Regardless of which one of these groups you may fall into, one thing is certain, we only want the best to protect our loved ones, our communities, and ourselves. Fiocchi of America firmly believes in producing only the highest quality, most reliable, consistent performing ammunition; and this is never truer than when the task at hand is one that requires no compromise.