The USNWR national university rankings, at least for the top schools, corresponds fairly well to a simple test score ranking. Elon’s cumulative average SAT M+CR+W score is about 1800. That seems to correspond to scores for private universities in the bottom quarter of the top 100 (e.g. Clark, Marquette, University of Denver, University of Tulsa, St. Louis University, Drexel).
However, I doubt that this pecking order (for whatever it’s worth) has a measurable, significant impact on law school admissions.