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Full video
https://t.me/ButusovPlus/13470
"Even in a gunfight, we'd just get our asses kicked by the simplest rifles."
Russian soldiers posted a video testing the "unparalleled" bulletproof vest "Module-Monolith," produced by JSC "Special Materials Research Institute" (St. Petersburg). During the experiment, all five bullets penetrated the armor plate completely. The soldiers expressed their dissatisfaction with the quality of the heavy and useless gear: "Just f*cking great. Thank you, Ministry of Defense."
I'm guessing they just defined the standard for any round fired by a human-portable rifle, without worrying about whether it's possible to meet the standard.
That would make sense, bulletproofing your standard before the bulletproofing technology catches up.
Even Master Chief's Mjolnir armor from Halo wouldn't pass. (It would stop one bullet but not three in a row without time to recharge the shield.)
The 14.5mm KPV heavy machine gun is human portable in the same way that an 80/81mm mortar is. As in, if you bring a couple of friends and don't want to use it much, it's not completely impossible.
There are also anti-materiel rifles (generally bolt-action) which use that ammunition.