The Enfield Rifle: A Catalyst for Rebellion
The British East India Company's Enfield rifle was nothing less than the spark that ignited the Revolt of 1857. There were allegations that the grease in the cartridges was made of tallow and lard from cows and pigs, respectively, which had a negative religious impact on Hindus and Muslims. The "Sepoys" were understandably outraged by this insult, which resulted in the "First War of Independence" and made the Enfield Rifles an immediate cause.
Enfield rifle, firearm
What about the Enfield rifle did the Sepoy soldiers find offensive? - Quora
Robert McKie To the Warriors Their Arms
Codes and Marks: Government Marks
Revolt of 1857 - First War of Independence, Leaders, Causes, and Impact
Sepoys at Rifle Practice, 1857 circa (coloured lithograph)
Discovering the History of an Enfield Rifle-Musket
Lee–Enfield - Wikipedia
The Enfield Pattern 1853 Rifle Blasted Its Way Into the History Books
PDF] Violent Trajectories: A Cultural History of the Enfield Rifle in the British Empire
The Indian (Sepoy) Mutiny. Royal Irish - Virtual Military Gallery