Also let us not forget the good old .22 will get through the weave and hit it’s target. It may not kill right a way but it will hurt like heck & the bullet may bounce around inside the target doing lots of damage as well.
Not a chance. A 22 LR from a pistol or short barrel rifle will NOT penetrate any level of certified body armor. Please see the DOJ testing requirements about bullet resistance.
Modern bulletproof vests have the fibers locked to each other with resin and heat; they are also knife-and-icepick resistant as well.
And yes, I have been to the factories that make bullet resistant vests (one of the largest purchasers of Dyneema fabric), and personally tested vests with 22 LR, 9mm, 357 mag, 45 ACP.
In fact, level III and IIIA will also stop 12GA slugs and all buckshot.
Now, a 5.56mm round goes through it like a hot knife through butter. And that is a 22 caliber bullet. But it's also moving about 3 times the velocity of your 22 LR and also weighs in around 60% heavier, with a much thicker FMJ.
A trauma plate will stop the 5.56mm however. It will also stop the mighty 30-06 from a rifle, and just about anything from a pistol, save something like a 50 BMG out of a "handheld" firearm.