Hangfire

[Raeanne Dimick]

Traditionally the term refers to a delay in the [detonation] of [gunpowder] or other ammunition, caused by some defect in the [fuze]. In more modern usage it means to hold back on some plan or intended action.

[Tariq Zaki]

Hangfire in Modern Pentathlon - Shooting. The unusually lengthy time between the firing pin hitting a bullets percussion cap and the propellant charge catching alight.