The warded creature gains resistance to ranged weapons. The subject gains damage reduction 10/+1 against ranged weapons. It ignores the first 10 points of damage each time it takes damage from a ranged weapon, though a weapon with a +1 enhancement bonus or any magical attack bypasses the reduction. The damage reduction increases with the caster level to 10/+2 at 5th, 10/+3 at 10th, 10/+4 at 15th, and 10/+5 at 20th. Once the spell has prevented a total of 10 points of damage per caster level (maximum 100 points), it is discharged.