Kyle from northern California fabricated a projectile.
He calls these the "Mach-71" slugs as a tribute to the SR-71 jet. The design actually gives these slugs some surprising attributes such such as penetration and also expansion of the aerodynamic body.
Check out Gregg's own channel!
/ @dangershow7798
Негізгі бет Ғылым және технология The "MACH-71" Super Perforator Slug - TESTED
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