Emergency Reload and zero ammo.

If used with remaining ammo, Emergency Reload instantly reloads the weapons ammunition.

If used with no remaining ammo, the reload animation will finish before Emergency Reload takes effect.

This may be specific, so this happens with Rapidfire.

Supports:
premeditation
persistence
inginuity

Witchhunter, crossbow.

I do not have an passives that effect reload.