What is the cut-off date you are looking at for the C1?
Older ammo used by the CF (1985):
APDS/T: L28A1, C35 (same as L28A1 except CA primer), C35A1 (same as L28A1 except US primer), C35A2 (US primer and different propelling charge)
APFSDS-T: M111 (the write up for the C74 TPDS/T also mentions a M735 APFSDS)
TPDS/T: C36A3, C74 (and L45A1, DM88)
-C74 as not the sub-cal tubular shot, that was the C71, however the C71 is not listed as being in use in 1985 (but I don't think it was long after that, early-mid 90s). The C74 was later modified to be the C148 SR/TPDS-T by putting small fins similiar to that on C71.
STUP/T: C62
HESH: L35 series (and M393A2, DM512)
SH/T Prac: C66, C72 (and L56A1, NR 110)
Smk WP-T: M416
Smk BE: L39A2
Blank: C1A3
Items in parentheses were not CF stock but authorized for CF use.