accurate

Telling the truth or giving a true result; exact; not defective or faulty.

an accurate calculator

an accurate measure

Deviating only slightly or within acceptable limits.

My horoscopes I read last week were surprisingly accurate.

On course to hit, or successful in hitting, a target; well-aimed.

an accurate pass

an accurate shot

Capable of consistently hitting a target, especially using some weapon or tool.

an accurate marksman

an accurate shooter

Precisely fixed; executed with care; careful.

for that is the fume of those, that conceive the celestial bodies have more accurate influences upon these things below, than indeed they have