You saw that on PBS, didn’t you? I cringed when I heard that, because Lee-Enfield rifles hadn’t been invented at the time of the Sepoy Mutiny.
A I told another poster, no I did not see it on PBS, as I don't really watch TV. I'm sorry you cringed when you saw it. While the Lee-Enfield rile with brass cartridge ammo had not been invented yet.....the Pattern 1853 Enfield were first used by the Brits in well, 1853.
The Indian mutiny was in 1957.......four years after the introduction of the Pattern 1853 Enfield rifle.