This video tests the penetration capabilities of the .300 Winchester Magnum armor-piercing round against various steel thicknesses and RMA's XRT Special Threat Plate. The Swiss P AP round successfully penetrated 1.25 inches of mild steel and the XRT plate, demonstrating significant armor-piercing power. While the XRT plate stopped the standard MK 248 Mod 1 round, it was defeated by the AP variant. The test concludes that the .300 Win Mag AP round is highly effective against most common barriers.
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