Here are a few rimfire cartridges. Including 41 Swiss 56-50 Spencer 44 Henry .38 .32 .30 .25 9mm
Just walking on the edge of of my grave.
AIM-9 Sidewinder (completely inert).
" Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote. " - Benjamin Franklin
50 BMG Wildcat cartridge, sized down to accept a .308 projectile.