Inaccurate?

Inflict Serious Wounds, Mass

(Player's Handbook v.3.5, p. 244)

Necromancy
Level: Cleric 7, Death Master 7, Dread Necromancer 7,
Components:

This spell functions like mass inflict light wounds, except that it deals 3d8 points of damage +1 point per caster level (maximum +35).