crack shot vs deadeye

crack shot and deadeye both are nouns.

Word	Noun	Adjective	Verb	Adverb
crack shot	Yes	No	No	No
deadeye	Yes	No	No	No

As nouns, deadeye is a hyponym of crack shot; that is, deadeye is a word with a more specific, narrower meaning than crack shot:

Other hyponyms of crack shot include franc-tireur, rifleman, sniper.

crack shot (noun)	deadeye (noun)
someone skilled in shooting	(nautical) a round hardwood disk with holes and a grooved perimeter used to tighten a shroud
	a dead shot