E C Cases

Note to John Moss
John I was able to pick up a few brass cases EC 42 amongst them one with the S (sunbeam) and another
steel cased EC 43 but with only the 4 the 3 is missing is that a bunter failure or intent??How much out
of the usual are those two rounds?And one with a W17 but very tiny hardly readible and another the same
with W 18 in a larger size.And is there such a thing as a RIOT LOAD with a stamp REM-UMC 18 but a bullet
that is more blunt at the top?I have computer problems and cannot sent pics at the moment.Thanks in advance