None of the rounds you mentioned will do a darn thing to body armor. Handgun rounds aren't very powerful against an unarmored torso. An armored one will shrug them off with bruises but no serious damage.
It's a head or extremity shot in those situations. Since I train center-of-mass, I'm fairly screwed.
I think your best bet would be a standard failure-to-stop drill. Two in the chest, one in the head, repeat as required.
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16 Pistols, 5 Rifles, 1 Shotgun, no time to shoot them
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