Inaccurate?

Stone Shards

(Dragonlance Campaign Setting, p. 112)

Transmutation [Earth]
Level: Sorcerer 2, Wizard 2, Spellthief 2,
Components: V, S,
Casting Time: 1 action
Range: Touch
Target: One stone/3 levels
Duration: 1 minute/level or until used
Saving Throw: Reflex negates (see text)
Spell Resistance: No

This spell enables you to transform ordinary stones (no larger than a sling bullet) into explosive, grenadelike weapons.

Throwing a stone is a standard action. The stones have a range increment of 20 feet. A ranged touch attack roll is required to strike the intended target with one of the transmuted stones. Each stone bursts upon striking the target or any hard surface. A direct hit from one of the exploding stones deals 2d6 points of damage to the target, and 1d6 points of damage to those within 5 feet of the point of impact. A creature struck directly with one of the stones is not entitled to a saving throw, but those within the blast area are allowed to make a Reflex saving throw to negate the damage.

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