Hardened Steel Lock vs Bigger and Bigger Guns…
This video tests the durability of a hardened steel lock against progressively larger calibers of firearms. Despite multiple direct hits from 9mm, 10mm, .44 Magnum, .450 Bushmaster, and 12 gauge slugs, the lock's shackle remained secured, demonstrating its robust construction. Even after significant damage, including a blown-out keyhole mechanism, the lock did not yield.









