R ^ L C II
Royal Laboratories ( ^ = Broad Arrow, British Gov’t Property Mark)
II Mark II ( Roman 2)
Date…from1892 to 1902 approx.
No year dates applied to cartridge at this time.
Calibre .303 ( 7.7x56R), Mark II andlater Mk. VI used a 215 GR.,Round-nosed cylindrical bullet, in a Cupro-Nickel jacket.
over a charge of Cordite, MD.
Velocity in Magazine Lee Enfield,
(Long barrel) about 1850 FPS.
Used in NorthWest Frontier ( 1892—) Boer War, other colonial fracas up to 1910s ( to use up old stock)
Replaced 1902? By Mark VI, slightly redesigned bullet, charge of Cordite MD-T ( tubular).
Replaced by Mark VII ( 174 gn Spitzer in 1907-10 or so.
Cartridge found in WWI site probably old stock utilised for training with obsolete MLE rifles, or for guard duty by second line troops.
WHOA!!! BIG CORRECTION!!!
Just seen the Photo…delete all reference to.303 cartridge…
Revolver cartridge Cal .455 Mark II Cordite, for Webley Revolvers and later Colt and S&W WW I revolvers.
Headstamp same origin, and easily confused for .303 of same period.