I blow out .303 brass for ammo for my Musket.
Anneal casings, expand MOUTH with 9mm Luger expander. (I use a tapered punch, expand until the mouth is ALMOST to base diameter.) Quick and easy.
Load with 9 grains of Unique, top with a single 000 Buck ball, slip it up the pipe of my Musket and pull the trigger. For the Lee-Enfield Musket, I load with 8 grains of Unique and standard plastic Wad with a pair of 000 Buck balls. Knocks down Falling Plates nicely.
Problem you might encounter is that there is damned little .303 brass that matches the MilSpec. SOME commercial brass is so out-of-spec that likely it will fit into some shotguns with little or no thinning of the rims.
For a .303, best brass ever made was Defence Industries' during WW2: rims were ALL at the specified .063" Max. THAT brass you treasure nd load carefully for Match use: there ain't no more of it.
Commercial brass has actually been sold in Canada with rims as thin as .040": drops right into many .410 shotguns.
Good luck!
Anneal casings, expand MOUTH with 9mm Luger expander. (I use a tapered punch, expand until the mouth is ALMOST to base diameter.) Quick and easy.
Load with 9 grains of Unique, top with a single 000 Buck ball, slip it up the pipe of my Musket and pull the trigger. For the Lee-Enfield Musket, I load with 8 grains of Unique and standard plastic Wad with a pair of 000 Buck balls. Knocks down Falling Plates nicely.
Problem you might encounter is that there is damned little .303 brass that matches the MilSpec. SOME commercial brass is so out-of-spec that likely it will fit into some shotguns with little or no thinning of the rims.
For a .303, best brass ever made was Defence Industries' during WW2: rims were ALL at the specified .063" Max. THAT brass you treasure nd load carefully for Match use: there ain't no more of it.
Commercial brass has actually been sold in Canada with rims as thin as .040": drops right into many .410 shotguns.
Good luck!


















































