Ballistics Testing. Watch the ballistics test with every gun that has ever been used in a school shooting, and then some. Classroom Shelter Ballistics Testing (AR-15, AK-47, and others) Shelter-In-Place Bulletproof Storm Shelters™ ballictic testing. .22 caliber, 9mm, .40 caliber, .357 magnum, .45 caliber, 12 Gauge, 12 Gauge slug, 7.62mm AK-47 ...