After the plan failed, the gang, having taken hostages in a local hotel, wore the armour during a final shootout with the police. Byrne died from a stray bullet that hit his groin through a small gap in the armour, and in an attempt to rescue Dan and Hart, Ned donned his suit during a fifteen-minute exchange of gunfire with the police. Although the armour protected his head and torso, he received several bullet wounds to the hands and legs, causing significant blood loss and resulting in his capture. Hart and Dan died during the final stages of the siege, possibly in a suicide pact. After making sufficient recovery from his wounds, Ned was tried, convicted, and sentenced to death by hanging.
https://en.wikipedia.org/wiki/Armour_of_the_Kelly_gang
My steel jacketed 30-06 round shot right through a 1/2 piece of steel plate.
I don’t think I would want to bet my life on an ironman suit