Moving on from the H Mark I and II I described in my previous post, the H Mark III was an Indian version of the H Mark I, but loaded with cordite as this was more stable in tropical climes. The range of rifle projected greandes was considerable, ranges of 300 yards being obtained depending on the grenade. Rounds with the whole case blackened are for rodded grenades and became the H Mark II after the 1927 changes in nomenclature. The rounds with the top half blackened are the "Cartridge S.A.303 inch Rifle Grenade 30 Grains Ballistite Mark I" wihich changed in 1927 to ".303 inch H Mark Iz" and was used for launching No.23 and other grenades form the cup discharger. The E Mark IT was only used for a very short period in the 1930s and no example with that headstamp is known to survive today.Īlthough the very early grenade discharging blanks in WWI were simply Ball rounds with the bullet removed, specialist rounds were soon developed for firing different grenades.
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That "E" is nothing to do with the "E" in "E Mark IT", where the "E" is the code for a smoke generator discharger from armoured vehicles and the "T" indicates it is loaded with Black powder. The "E" in the headstamps is the code for Eley Brothers and the cases are made from reject Mark VII ball cases as has already been pointed out. If you tried to launch a grenade with a training blank it would probably blow up the rifle. It is all to do with the burning rate of the powder. "There is a world of difference between training blanks and Grenade discharging blanks. In 2012, the late Tony Edwards, a noted authority on British Smallarms Ammunition who assisted with a number of subjects covered by this website, wrote as follows on the War Relics forum in answer to a member's query about grenade firing and training blank cartridges: Note that, in British military nomenclature, blanks are all just "cartridges", while bulleted cartridges are "rounds".
303 flanged cases familiar to all those who have experienced military exercises up to the time the NATO 7.62mm round was introduced in the mid 1950s for the transitional Lee-Enfield rifles and the L1A1 FN SLR (Self Loading Rifle). The cases of both periods were usually part dipped in a coloured stain to identify their type and purpose.Īll WWI grenade discharging cartridges had open necks, but WW2 issue used the rosette crimped. Later cartridges were of the more usualĬrimped neck type, familiar to the many who have been involved in military exercises over the years. The early grenade firing cartridges were plain cartridge cases filled with propellant powder and plugged with a hard wax-like compound. Using a live bulleted cartridge by mistake would result in serious injury, or worse, to the firer and those around him. These grenades were launched from the muzzle of the rifle using a cartridge that produced only gas pressure in the barrel. The need to project grenades, further than was possible by hand, was filled by various designs of grenade heads with rods attached that fitted into the bore of the. Prior to the very first issue of the Mills bomb in May 1915, there were a number of hand grenade designs in use during the early months of the First World War.
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