I haven’t read enough about Isandlwana as I’d have liked. I did not know than any of the Zulus had long range rifles.
The Brits were about as outnumbered in that battle as Custer at LBH.
The best read on Isandlwana is “How can man die better”.
written by Lt Col. Mike Snook. He commanded the Royal Welsh Regt. for a couple of year. He dispels many myths about the British Army’s defeat in this battle.