Federal Syntech Solid Core is for when wild places put you in a tight spot so you can keep your cool, rely on your skill and call on the unstoppable performance of Solid Core ammunition, from Federal Premium. Its flat-nose bullet is formed from extremely hard, high-antimony lead to hold together while blowing through bone and penetrating deep, making it an ideal choice for both hunting and dangerous animal defense. Unlike hard-cast bullets, Solid Core uses a Syntech polymer jacket to reduce friction and leading without features like wax rings and gas checks.