^The Army quarterly and defence journal Vol 104. West of England Press. 1973: 91. ...Snider-Enfield, which had an effective range of 600 yd.
^Macdonald, John Hay Athole. Fifty years of it: the experiences and struggles of a volunteer of 1859. W. Blackwood and Sons. 1909: 232/518. The Snider-Enfield even at 600 yards, which was the limit of the really effective range of the rifle for accurate shooting.