The Magpul Core Precision Rifle Quick Reference Cards offer the shooter a comprehensive overview of the fundamentals of marksmanship, quick reference range estimation sheets, checklists for building shooting positions, aids for the observer, and aids for reading wind. Using the same density altitude system and rugged, all-weather, erasable material as the Precision Rifle Data Book, the Quick Reference Cards offer streamlined access to your rifles' elevation and wind data.
Intended for use as a medium to transfer data for a given rifle from the Precision Rifle Data Book to these cards for use in the field. Conveniently sized for use in an arm board, your data will always be within reach. Ring not included.