Barnes Spitzer Boat Tail Muzzleloader Bullets are crafted from 100% copper, offering superior accuracy, penetration and expansion. Designed with a spitzer boat-tail shape, these bullets provide flatter shooting trajectories, ensuring consistent performance at longer ranges. Specifically recommended for use in in-line muzzleloaders, they expand up to twice their original diameter and retain nearly 100% of their weight, delivering exceptional terminal performance for quick, humane kills. The snug-fitting sabot effectively prevents gas blow-by, ensuring consistent velocities and tight groups for precise, reliable shots. Ideal for black powder muzzleloading rifles, the Barnes Spitzer bullet offers hunters outstanding performance and efficiency for all their reloading needs.