""A Course in Exterior Ballistics: Ordnance Textbook"" is a comprehensive guide to the science of exterior ballistics, written by the Ordnance Department in 1921. The book covers the principles of projectile motion, including trajectory, velocity, and range, as well as the effects of wind, temperature, and other environmental factors on the flight of projectiles. It also includes detailed information on the design and performance of various types of guns and ammunition, as well as practical advice on how to calculate firing solutions and adjust for different conditions. This textbook is an essential resource for anyone interested in the science of ballistics, including military personnel, engineers, and firearms enthusiasts.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.