Source: cirosantilli/gun-type-fission-weapon

= Gun-type fission weapon
{wiki}

<Gun-type fission weapons> are the simplest approach and they work with <Uranium-235> bombs as you can ignite it with just one explosion.

But <Gun-type fission weapons don't work with plutonium>, and <weapon grade Plutonium is cheaper than weapon grade Uranium>, so it wasn't much used.

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