I handled many rounds, while I was in my thirties. At 81, I have no effects from it.
You handled many rounds, did you walk around with them in your pocket? Because these will sit in the ground and pollute the backyards of these countries, not for five minutes but for their whole lives.
A dirty bomb is when you blow up something with low levels of radioactive material that then creates a cloud of radioactive material which will pollute everything. It doesn't kill you in five minutes or five hours or even five days. But if you are baby born into a home with this dust it will cause terrible harm to you over the next twenty years.
The biggest dirty bomb ever was recently detonated in Ukraine when Russia blew up a weapons depot with depleted uranium.
Depleted Uranium, Devastated Health: Military Operations and Environmental Injustice in the Middle East
https://hir.harvard.edu/depleted-ur...d-environmental-injustice-in-the-middle-east/