Muzzleloader hunters need propellant that ignites reliably and burns consistently even in extreme weather conditions. New Blue MZ(TM) from Alliant PowderA(R) 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 PremiumA(R) B.O.R. Lock MZ(TM) System. The clean-burning formulation allows for fast easy cleaning with water-based solvents. 48-pack of 50-grain equivalent pellets Highest velocities at safe pressures Provides outstanding accuracy with a wide range of projectiles Great ignition characteristics with 209 shotshell primers Clean-burning formulation eases cleaning with water-based cleaners