Okay, sailors, help me out here...

[82Rigger]

The Army didn't have too much brass to polish, but we had Brasso, and our uniform
brass and belt buckles had best not have any tarnish or fingerprints or what ever on them.

I can't imagine what would happen if officers or NCOs found any green on them.

On occaison I saw 90mm (tank) shell cases being used for decoration.

So, lessee if I have this right:

3"/50 ammo was fixed and had necked cases.

5"/25 ammo was fixed and had a straight-walled case. (USS Arizona ammo)

Other 5" ammo, such as for the 5"/38 and the 5"/54 was semi-fixed and the case is straight-walled.

I realize I've asked for info that is before ya'lls experience database. You've been very helpful!

Steve