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10mm ammo test: Underwood and DoubleTap from Mech Tech carbine



This is another in a series of tests from a Mech Tech Carbine Conversion Unit, which turns your Glock pistol into a 16"-barrel pistol-caliber carbine. This particular Mech Tech CCU adapts a .45 ACP or 10mm Glock body into a 10mm rifle.

In my previous test I tried out hollowpoints for personal defense. You can view that previous test here:

In this test I wanted to explore using hardcast or solid bullets, especially full-power 10mm loads such as those sold by DoubleTap and Underwood. In this test I try out Underwood 180-grain TMJ, DoubleTap 200-grain Wide Flat Nose Gas-Checked Hardcast, and Underwood 220-grain hardcast ammo. I used four blocks of ClearBallistics synthetic ballistic gel to catch the bullets.