Iran cannot use 60% enriched uranium directly in its current form (UF₆, which is stored as a solid in cylinders but handled as a gas or liquid during processing) to build a gun-type nuclear bomb. It must first be converted to metallic uranium, which is required for any fission weapon core. However, once converted they ...

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Link :
https://www.nextbigfuture.com/2026/03/what-kiloton-range-would-crude-gun-bombs-have.html