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Adamantane is an organic compound with formula C 10 H 16 or, more descriptively, (CH) 4 (CH 2) 6.Adamantane molecules can be described as the fusion of three cyclohexane rings. The molecule is both rigid and virtually stress-free.
Modern 120 mm tank gun shells. KE penetrators for modern tanks are commonly 2–3 cm (0.787–1.18 in) in diameter, and can approach 80 cm (31.5 in) long. As more structurally efficient penetrator-sabot designs are developed their length tends to increase, in order to defeat even greater line-of-sight armour depth.