This video tests the ballistic resistance of a lava rock against various firearm calibers. While smaller rounds like .410 birdshot and .22 LR only cause minor surface damage, larger calibers like .380 Auto and 9mm embed their projectiles. The .223 caliber cracks the rock, and the 7.62x39 round breaks off a significant chunk, demonstrating that even natural materials can offer some projectile resistance, though not true bulletproofing against rifle rounds.
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