But you said no arrow,it is proven to be done and with a heavy ,high foc arrow.
I believe Ihave seen them shot and killed on tv with a completely broadside shot(if memory serves).We don't always see what is "the best" on tv though.
You are probably correct with the best way to shoot them,I am not an Africangame hunter.[8D]
I am not a heavy arrow guy but when it comes to busting bone,you must haveHIGH momentum and high foc.