Take a 7.62x54R to the chest, and walk away…
As you know, the Dragunov SVD sniper rifle is a semi-automatic, gas-operated designated marksman rifle, chambered in old-school Mosin 7.62×54R, and developed in the Soviet Union in the 1960s. While the Russians have moved on to more advanced DMRs, the classic SVD is still in widespread use in the Third World and former Warsaw Bloc.
This particular firearm was used on June 2, 2005, by insurgents who shot at U.S. Army soldiers from the 3rd Infantry Division while they were on patrol in Baghdad. In a videotaped attack, you can see one soldier being hit in the chest by the enemy sniper. Seconds after impact he was able to get up and take cover behind a Humvee.
Luckily, modern SAPI plate is rated to withstand .30-06 AP, which thumps a little harder than 7.62x54R.
After making contact with the enemies who shot him, the soldier rendered medical aide and took them into custody. The Army managed to retrieve the rifle in that attack and donated it to the ATF to add to their 15,000 gun reference library, where it remains today.