Boiling Ammunition....

[DadSmith]

I didn't think any would have worked. I imagine a few more minutes maybe would have finished them all off.
Boiling probably destroyed the primer sealant allowing water to get into the primer and powder.

 

[Expat]

I had never heard of anything like this.

 

[DadSmith]

I had never heard of anything like this.

Soviet Soldiers Boiled Their Ammunition While Serving in Afghanistan: Here’s Why - Soldier of Fortune Magazine

by Nikolay Shevchenko During the Soviet war in Afghanistan, there was a widespread army tale. Russia

sofmag.com