THIS INFO APPEARS TO BE FROM THE MID 1950S
The 17 Pdr gun was originally designed as an anti-tank weapon and was provided with a H.E. shell for use against targets which would not normally be engaged with shot. The use of the gun was subsequently extended and it may now be met with on field, S.P. and tank mountings. The ammunition is interchangeable in all 17 Pdr equipment except as stated below.
AMMUNITION
(a) Q.F. fixed ammunition (except Paper Shot, which is Q.F. separate) of the following Service types Ad used
Cartridge, Q.F. 17 Pdr. H.E./T. Shell.
Cartridge, Q.F. 17-Pdr. Reduced Charge H.E./T.
Cartridge, Q.F. 17 Pdr. Reduced Charge H.E./H.C/T.
Cartridge, Q.F. 17 Pdr. Reduced Charge H.E./Super H.C./T
Cartridge, Q.F. 17 Pdr. B.E. Screening Smoke
Cartridge, Q.F. 17 Pdr. B.E. Coloured Smoke
Cartridge, Q.F. 17 Pdr. A.P.C./T. Shot
Cartridge, Q.F. 17 Pdr. A.P.C.B.C./T. Shot
Cartridge, Q.F. 17 Pdr. Practice/T.
Cartridge, Q.F. 17 Pdr. Reduced Charge, Practice, Flathead/T
Cartridge, Q.F. 17 Pdr. S.V. A.P.D.S./T. Shot
Cartridge, Q.F. Blank, 17 Pdr
Cartridge, Q.F. Clearing, 17 Pdr
Cartridge, Q.F. 17 Pdr, Drill, A.P.D.S
Cartridge, Q.F. 17 Pdr. for use with Paper Shot.
Cartridge, Shot, Paper, Q.F. 17 Pdr.
(b) As 17 Pdr and 77mm. projectiles are identical, it was decided, in 1944, to amend the designation of all the then current projectiles to include "17 Pdr. and 77mm." in the nomenclature and all current projectiles are designated in this way.
(c) Since the chamber capacity of the 17 Pdr gun is greater than that of the 77mm and the cartridge cases are consequently of different design complete rounds are not interchangeable between the two equipments.
For this reason complete rounds include one equipment only in the nomenclature, i.e., the equipment for which the round, as a whole, is designed.