>>763
https://en.wikipedia.org/wiki/Gun-type_fission_weapon#US_nuclear_artillery
The gun method has also been applied for nuclear artillery shells, since the simpler design can be more easily engineered to withstand the rapid acceleration and g-forces imparted by an artillery gun,
and since the smaller diameter of the gun-type design can be relatively easily fitted to projectiles that can be fired from existing artillery.
英語版の方には単純な構造だったので発射時の大きなGに対応する手段を講じやすかったし、直径を小さくできたので従来の火砲で撃てる砲弾にしやすかったと書いてある