Note:  Do not rely on this information. It is very old.

Boxer Cartridge

Boxer Cartridge, a metallic cartridge invented in 1852 for the Snider rifle. It consisted of four main parts - the shell or case, the fulminate, the powder, and the projectile. The bullet, a conical one, had a wooden plug in its notch, and an aperture filled with clay at its base. The charge of powder was 75 grains, and the weight of the entire cartridge and bullet 755 grains, the bullet of the perfected (No. 3) pattern weighing 480 grains.