I found this video showing the complete filling and assembly of all componants for 6 pr 7cwt. Self explanatory really but interesting to have confirmed that by this time, CF did mean charge full, rather than cordite filled as often stated. It is also interesting to see just how quickly and hence sloppily the paint markings were applied.
https://www.youtube.com/watch?v=A1QFxxbxP5Q
https://www.youtube.com/watch?v=A1QFxxbxP5Q