Firing an AK47 into a pool: How deep will it go?

How deep will an AK47 bullet go in a pool?

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00:00 - Teaser
00:29 - About What I'm Filming
01:05 - Setting Up Underwater Cameras / Targets
02:06 - Sig MPX w/ Deadair
04:07 - Kriss Vector w/ Deadair
06:00 - AK47
08:05 - AR15
10:54 - Results / Aftermath