Hodgdon Pyrodex P (FFG) Muzzleloading Powder from Powder Valley is a top choice for expert muzzleloaders. Shop 1 lb containers of Hodgdon Pyrodex P propellant today. The principle use for Pyrodex P is in all pistols and in smaller bore rifles, 45 caliber and down. P is also useful as a priming charge in guns which have a tortuous or fouled ignition channel or other ignition problems.