Books
Alas, Babylon [1] by Pat Frank (A classic nuke scenario. This book was a key influence in my writing, and it was my inspiration to write “Patriots [2]” in a similar style.)
Vandenberg [3] by Oliver Lange (Invasion scenario. Note: It was later republished under the title: Defiance: An American Novel [4])
Movies
3 Days to Kill [5] (Warning: Has many violent scenes.)
Paths of Glory [6]
Instructional Video:
How to Shoot Beyond Belief ~ Long Range Shooting for Hunters [7]