zero in vs range in

zero in and range in both are verbs.

Word	Noun	Adjective	Verb	Adverb
zero in	No	No	Yes	No
range in	No	No	Yes	No

As verbs, zero in and range in are synonyms defined as:

zero in and range in: direct onto a point or target, especially by automatic navigational aids

Other synonyms of zero in include home in.

zero in (verb)	range in (verb)
adjust (as by firing under test conditions) the zero of (a gun)	direct onto a point or target, especially by automatic navigational aids
direct onto a point or target, especially by automatic navigational aids