Quick-Aim

Enchantment 
The subject missile weapon (bow, sling, etc) gains uncanny responsiveness; in game terms, an Aim action taken with the subject weapon has the effect of two turns of aiming.

Energy cost to cast: 100. For 200 energy, one Aim action may count for three turns of aiming. Halve the cost if subject is a missile (e.g., a javelin or throwing axe). The enchantment doesn’t work on ammunition (like arrows). Note that this spell may be recast at a higher level as per Accuracy. 
Prerequisites: Enchant and Grace.