A muzzle load assembly includes a flexible sleeve that has a first end, a second end and a peripheral wall extending between the first and second ends. The first end is open. A bullet is positioned within the sleeve. A plurality of powder charges is attached to the second end of the sleeve and extends away from the second end of the sleeve in an aligned orientation with respect to each other. Each of the power charges comprises a fibrous casing having gunpowder therein. The sleeve, bullet and attached powder charges are extendable into a muzzle of a muzzle-loading rifle.