Ok, progress has been quicker than expected. Here is the updated sheet for comments.
Changes:
Heuhen's turrets and Norwegian British-built guns
New barrel and detailing on the 8in Mk I/ II
Revised shield on 7.5in Mk VI
New 155mm TMF/ FMF
Revisions on 6in Mk XXI, now 1 pixel lower and new barrel
6in Mk XXII, new barrels (old ones were too long)
4.7in Mk VIII, one version deleted
All the 4.7in shielded mounts got new breeches
4.5in Mk IV single, new breech
New 4.5in Mk V added
New 45in Mk 8 added
Two shielded 4in Mk V added for period destroyers and cruisers
4in Mk IX, new muzzle bag added
2pdr single, new gun added plus three new mounts; one with shield and both sides of late-war power mount
New 40mm/60 Mk5 twin added
Brand new 40mm Boffin drawn by me
40mm/70 single separated from /60 single and all /60 barrels shortened by 2 pixels
New twin 20mm added using gun of new 20mm single and new powered mount of Boffin
New 12.7mm HMG MTB twin mount drawn by me
Revised Bidder ASW tubes added, now smaller
Revised Ruler added
Boxed Seadart added
New lightweight Sea Wolf launcher added and current lightweight launchers revised
New smaller Sea Cat launchers (again!) and new smaller Sea Cat missiles (now 12 pixels high rather than 14, still oversized but less so)
SLAM Blowpipe added
New Ikara parts added
Phew, that's all from me unless anyone has anything else to add or improvements to offer! Now I'll start work on the radars sheet (already got new Artisan and Smart-L on it ready)