CWArtillery wrote:
> Do all 24 lbers use iron?
No.
> Are the iron late war use?
Iron underplugs were used throughout the war.
> I think obviously iron is not just CS but did both use the iron and the brass?
Yes.
From my studies of sawed-in-half Bormann shells, whose fuzehole reveals their identity as CS-made or US-made, I can say that in Field Artillery calibers (6, 12, and 24-pounder), most CS-made Bormanns have a brass underplug, and most of the US-made ones have an iron underplug. But please keep in mind, I've seen plenty of exceptions, meaning CS with iron, US with brass ...enough that I would not say "brass means CS" and "iron means US."
Regards,
Pete