hit the bull's-eye - Phrases/Idioms
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Also, hit the mark or the nail on the head. Be absolutely right, as in Your remark about finances hit the bull's-eye, or Jane hit the mark with her idea for shuffling personnel, or The governor's speech on attracting new businesses hit the nail on the head. The round black center of a target has been called a bull's-eye since the 17th century; mark similarly alludes to a target; and the analogy to driving home a nail by hitting it on its head dates from the 16th century. Also see off the mark.