A bit off topic, but, anyway... The Brits used a series of ctgs at the end of the 19th Century they called "Manstopper" rounds. The ctgs were made in .455 and .476 calibers, and, from memory, were initially about 250 grain, cylinder shaped rounds, with hollows at both ends of the ctg. Later, they transitioned to a 210 (about) grain round with a full wadcutter configuration in the nose of the round and a deep hollow in the base (for stability).
My recollection is, the 1898 Hague convention, on not permitting use of exposed lead projectiles in military operations, stopped their manufacture.
Rich
More info for those interested:
.455 Webley - Wikipedia