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This experiment tests the effectiveness of filling hollow point bullet cavities with Flex Seal liquid rubber to improve expansion through barriers. Results show that the Flex Seal modification surprisingly aids consistent expansion through soft barriers like heavy clothing, with the rubber dispersing into fragments. While successful in many tests, hard barriers like plywood still posed challenges for expansion.

This video tests the durability of an AR-15, AK-47, and a shotgun by encasing their barrels in concrete and firing them. All firearms successfully functioned after the concrete shattered upon firing, demonstrating remarkable resilience under extreme stress. The experiment highlights the robust engineering of these common firearm platforms.

This video tests the ballistic resistance of a vending machine against various firearms, culminating in an M67 grenade detonation. While smaller calibers like .50 AE, 5.56mm, and 7.62x39mm failed to penetrate, the .408 CheyTac round successfully exited the machine. The Barrett M82, surprisingly, caused significant damage but didn't consistently exit. The grenade test resulted in complete destruction.

This video showcases a custom-built 7-barrel shotgun, highlighting its extreme recoil and destructive power. Due to safety concerns, it requires a tripod mount and cannot be shouldered. The construction involves welded steel pipes, and a demonstration shows a watermelon being vaporized. Satirical commentary includes clips of Joe Biden discussing shotguns for self-defense.

This video tests the bullet resistance of an empty oxygen tank against various calibers. While smaller handgun rounds like .22 LR and 9mm only cause surface marks, higher-powered rounds like the .500 S&W Magnum and .50 BMG with standard rounds penetrate the first wall. Only .50 BMG Armor Piercing Incendiary (API) rounds achieved full penetration through both sides of the tank.

This video details the development and testing process of Lehigh Defense bullets, featuring insights from Bill Wilson, who acquired Lehigh Defense in 2022, and Mike Cyrus, an employee since Lehigh's inception. They discuss how Lehigh Defense designs high-performance bullets and aims to become a dominant force in the bullet industry, akin to Wilson Combat's success in firearms. The discussion focuses on the technical aspects of bullet design and rigorous testing methodologies.

This video tests how many cast iron skillets are needed to stop various bullets, from .22 LR to 500 S&W Magnum. Most common handgun rounds like 9mm and .45 ACP are stopped by two skillets. Rifle rounds like 5.56mm and 7.62x39mm also require two to three skillets, while the powerful 500 S&W Magnum penetrates three and is stopped by the fourth. The .22 LR failed to penetrate even the first skillet.

This video tests the penetration capabilities of a .50 BMG rifle, specifically the Serbu BFG-50A, against a section of railroad track. Various .50 caliber rounds, including Raufoss Mk 211 API and silver tip API, were fired. While the rifle and ammunition demonstrated the ability to penetrate even the thickest parts of the rail (over 1.5 inches), bullet deflection and shifting upon impact with the dense steel were observed.

This video demonstrates launching an M67 fragmentation grenade using an X Products Can Cannon towards a distant frozen lake. The Can Cannon, firing .223 blanks, successfully propels the grenade, which detonates upon impact, creating a visible hole in the ice. The experiment highlights the launcher's capability for extreme projectile delivery in challenging outdoor conditions.

This video tests the destructive power of a .50 caliber spotter round against 1.25-inch thick bulletproof glass, comparing it to a standard FMJ round. The spotter round, designed to spark and flash, created a larger crater and more surface damage than the FMJ round, demonstrating its specialized impact characteristics. The Serbu BFG-50A rifle was used for both tests.