This transmutation makes a ranged (projectile) weapon strike true against the caster's favored enemies. All critical rolls against favored enemies automatically succeed, so every threat is a critical hit. The affected weapon also negates any miss chance due to concealment whenever the caster fires at a favored enemy (unless it has total concealment, in which case the normal miss chance applies). If the ranged weapon or the projectile fired has any magical effect or property related to critical hits, this spell has no effect.