Accurate Artillery numbers during the Civil War?

I've been trying to find detailed breakdowns of the artillery numbers and types of artillery held by the armies in the field for either side at different points in the war. I've been able to find some numbers on my own but the numbers don't match up very well.

I plan to create some videos explaining why the Confederates chances of capturing D.C were slim to none and wanted to include artillery disposition and production to put things in a better perspective. If anyone has any good sources (or things that I should add to why the Confederates couldn't capture D.C) I'd really appreciate it.

I have the Union at the start of the war possessing around 4,000 pieces with only 165 of them being field guns. I don't have a number for the Confederacy for total pieces but I have field guns numbering 56.
 

Saphroneth

Banned
One thing that's important is that the Confederacy captured Norfolk - which had a lot of heavy guns in it. A lot.
Off the top of my head it's about 1,000, mostly 24-lber and 32-lber but with a sprinkling of massive caliber guns.


Incidentally, if I wanted to do a TL where the CSA captured DC I'd find it honestly quite easy. (Well, without Trent, which basically cripples the Union.) What you need is for the British to ditch Armstrong guns about two years earlier and for the CSA to snap them up, because a siege train of a dozen 40-lber Armstrongs would completely demolish any masonry fort and do a lot of damage to earthwork ones too - combine that with the Virginia making it up the Potomac (draft 19.5 feet, Potomac limiting draft 18 feet low tide 21 feet high tide) and you've got a rather sticky situation for the Union.



That's not to say that your post won't be very useful, of course, if you can get good numbers - I heartily encourage you to continue. I'll supply a few good ones myself:

First 8" Parrott rifle March 1862
First Rodman 15" Fort Monroe ("Lincoln Gun")
Second and third Rodman 15" delivered summer 1862
16 15" Rodmans delivered by Gettysburg
15" Dahlgren deliveries are basically determined by the commisson dates of 15" armed Monitors

Sadly not much in the way of good rate data.


One thing I think is interesting is that the Union largely went for less efficient massive-calibre smoothbores and the Confederacy concentrated on rifles (the Brooke rifles) which would have been much better against masonry and armour for their weight.
 
Incidentally, if I wanted to do a TL where the CSA captured DC I'd find it honestly quite easy.
I wasn't looking to create a time-line where the CSA does capture DC (I've already made a short video about that which contains a number of flaws) I was creating something that explained the only three times in the whole war that the CSA had some sort of chance to capture DC and the problems associated with it which is why I was looking for accurate artillery numbers (Good troop numbers aren't that hard to find) since without superior artillery, Washington can't be taken.

combine that with the Virginia making it up the Potomac (draft 19.5 feet, Potomac limiting draft 18 feet low tide 21 feet high tide) and you've got a rather sticky situation for the Union.

I have the Virginia's draft being 22 feet (it was 17 before the battle with the monitor but they added more Armour) and while it would spur a panic within D.C you would need to have it be able to even make that trip (and with it's shoddy engines I'd be amazed if it actually could) and be able to stay at anchor for long periods of time. That and it would need to be in connection with Lee's Maryland campaign and his created victory out of Antietam.
 
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