The Canadian Forces uses snow and ice to build trenches in the winter, in this demonstration I show how effective, or ineffective it is against the 7.62X39 bullet.
The Legal Brief - Prohibited Persons
Chewed balls for smoothbore flintlocks
Final 15 Minutes: What You Need to Survive a Disaster
The WildGats at the University of Arizona
Dovetailed Front Sight on an 1851 Navy