Weapon Jam/DH1

Jammed weapons in the middle of battle require a Full action to clear out, and are only cleared from success on a Challenging (+0) BS test.

Normally, when rolling the BS test for an attack with a firearm, a natural 96 to 100 (5%) will result in the weapon jamming. (Page 196). When firing a weapon on semi-auto or full-auto mode, the range increases to 94 to 100 (7%). However, when a reliable weapon would jam, the player can roll an extra 1d10–only on a 10 will it actually jam (0.5% to 0.7%), otherwise the attack is only an automatic miss without jamming. Unreliable weapons, regardless of firing mode, jam on a natural 91 to 100 (10%). Reliable and Unreliable qualities are mutually exclusive. If an Unreliable weapon would gain the Reliable quality, it instead loses its Unreliable status (and would need another upgrade to receive Reliable); the same is true for the opposite situation.