Guest User March 20, 2020 Muzzle Loader Building, Muzzleblasts, Muzzle Blasts Archives Installing a Breechplug | The Apprentice’s Notebook Part 1 Guest User March 20, 2020 Muzzle Loader Building, Muzzleblasts, Muzzle Blasts Archives A good measure of your rifle's safety, reliability and durability de pends in how the breech plug is installed. Fitting that plug is not a job to be taken lightly but it is how I usually begin a rifle.