.325 Winchester Short Magnum

thingiverse

Dummy round refers to a shot fired by a machine gun or other automatic weapon that is not aimed at any specific target but rather serves as a test of its effectiveness and accuracy. It's also used to clear jammed cartridges or to ensure the proper functioning of the weapon before engaging an actual enemy. The dummy round typically travels a short distance, usually no more than 100 yards, and explodes on impact, causing minimal damage to surrounding objects.