Keyhole
Ballistics term for asymmetrical bullet hole, real workplace jargon
when a bullet fired from a gun strikes its target at a funny angle, the resulting asymmetrical hole looks like a keyhole, hence the name. usually caused by a worn or damaged barrel, or poor quality/incorrect caliber ammunition.
that ancient pistol i inherited from my grandfather is so worn out, half the time the bullets will keyhole and the other half of the time i can't even hit the target.
Also in the dictionary
- keyhole in carpentry