30x111B Aden HV Stampings

When did UK loading facilities stop stamping the cartridge load type on the belt of 30mm Aden HV.?(eg.PRAC 4Z). I have a fired case with the following stamps (GD is Glascoed,Wales).
Groove is stamped: J.30.MM.RG 01
Belt is stamped: 01 GD 006

Usually the date is at the end so is it Lot 1 from 2006 or Lot 6 from 2001 ?
Is the 30mm Aden still loaded post 2010? Projectile type being colour/visual only.