Buy Federal 209 Primers available in Stock Now .Ignition is everything in muzzleloading. That’s why Federal Premium® developed the 209 Muzzleloading Primer to complement B.O.R. Lock MZ® bullets. The formulation provides superior resistance to moisture, as well as hot, reliable ignition of both granulated powder and pellets federal 209 muzzleloader primers in any conditions. The design eliminates the federal 209 muzzleloader primers excessive breech fouling typical of standard shotshell primers.