This guide details a ballistic durability test performed on the Master Lock M736 Magnum series lock, as demonstrated by firearms instructor Edwin Sarkissian. The test involves using an AR-15 rifle chambered in 5.56x45mm NATO to assess the lock's 'Tough Under Fire' claims and Security Level 10 rating. The procedure outlines firing multiple rounds at the lock, observing its resistance to penetration and functional integrity, even under direct ballistic impact.
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