Muzzleloader hunters need propellant that ignites reliably and burns consistently even in extreme weather conditions. Alliant's Blue MZ delivers on this tall order. The 50-grain equivalent pellets produce higher velocities than competing pellets at safe pressures, and ignite reliably with 209 shotshell primers. Blue MZ provides outstanding accuracy with a wide range of popular bullets, including the Federal Premium B.O.R. Lock MZ System. The clean-burning formulation allows for fast, easy cleaning with water-based solvents.