Abstract: The invention is an improved ammunition for use in muzzle-loader guns, where the invention is a muzzle-loader projectile that is substantially conventional in overall appearance to prior art, black powder projectiles, but differs significantly in that it has a plastic center that extends to the tip of the projectile, therein producing a lighter, streamlined projectile that has a higher muzzle velocity, and a truer, flatter trajectory than conventional solid lead projectiles; and, where said invention, on impact, mushrooms extensively, efficiently transferring all of its kinetic energy to the target.