You ask an extremely interesting question , Alistair ! Please allow me to elaborate .
So , this is an actual Eley Grand Prix spherical ball cartridge . It has a brass length of 8 mm and the velocity is just above 1000 feet per second.
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The spherical lead ball bullet could lay low a kakar deer , quite easily .
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However , if you took the exact same shot on a cheetal deer ... the penetration would leave a great deal to be desired . And let us not even begin to talk about sambhur deer , Neelgai , Bengal Bush Boars or panthers .
Now , if you used a cartridge with " High Brass " ( which achieves a velocity of 1296 feet per second ) to propel the exact same spherical lead ball bullet ...you are essentially guaranteeing stellar performance on game far larger than a kakar deer .
For example ,
cheetal deer
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forest panther
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Bengal Bush Boar
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or Buri Ganga river crocodile
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Now , yes. When using ordinary bird shot cartridges for wing shooting quails , pigeons , doves , snipe , grouse , pheasant or the like ... " Low Brass " cartridges shall leave nothing to be desired . However , for propelling spherical ball bullets... the " High Brass " cartridges will definitely give the operator an extremely noticeable edge in velocity .
I have hand loaded these spherical ball cartridges recently . The brass length of the Viri cartridges which I have utilized
.... is a pure 20 mm .
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I wholeheartedly concede that in modern times ... the significantly improved performance of modern propellant powders have greatly boosted the abilities of " Low Brass " cartridges .
However , for me ... a life time's worth of experiences make me invariably wish to go for the " High Brass " cartridges whenever possible . Especially for AAA cartridges ( red ) , or cartridges to utilize for the purposes of hand loading my spherical ball bullets ( green ) .
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And please . No subject is ever taboo with me . You may ask me anything you like.