Chard/Bromhead revolvers

Good morning gentlemen/ladies,

Yes, I did use your search function first.  I fear the results I got reflected my poor searching skillset.  

Back to topic, do we know what specific model of Webley (or Enfield???) revolver Lt. Chard and Lt. Bromhead carried on the 22nd and 23rd of January, 1879?  I presume it was a unit issue or private purchase by said officer?  Is that how it worked in those times?  
I have seen several statements with different answers regarding the model/caliber of the revolvers.

But the one that is the most commonly spoken of is a Webley Royal Irish Constabulary, and at least in Chards case, in caliber .45.  If this so, it could quite possibly be caliber .450 Adams which was in use by the British military at that time.  At least I think .450 Adams was in British military sidearm use at that time.  

In essence:

1. Do we know maker, model and caliber for said gentleman's sidearms?

2. How, and from whom, were, sidearms issued to officers in 1878/79??  Were officers obliged to purchase their own sidearm if they desired one?

3. Was caliber .450 Adams in British military service during the 1878/79 window?

I am located in Eastern Washington State about 200 miles inland from the Pacific coastline  As a moderately interesting datapoint about me, our home address is 10,500 miles (17,000 km) from KZN.  So, frankly the Anglo/Zulu wars knowledge around here is virtually non-existent, save for a few hard core amateur historians. or Anglophiles. Regrettably, the closest I have ever been to being in Britain was a brief trip up to “British” Columbia!  

Despite my, admittedly poor, attempts using your search function and having crap results, I just know these questions of mine must (MUST) have been answered and discussed ad nausem already on this forum.  And for my inability to find them, I apologize in advance.

Stand to

Chard's revolver at the RE Museum is a Webley RIC and is said to be the one he carried in the Zulu War - officers bought their own in "Government cartridge" ORs carried either the new Mark 3 Adams made as a centre fire or Mark 2 conversions from percussion ones. Calibre designation can be somewhat problematic - I have 2 Webley RIC's, one in .455 and one in .450/455 as the cartridge were virtually interchangeable alongside the .476 Enfields - here's a link that will help to confuse you on all that http://www.cartridgecollectors.org/?page=introduction-to-455-cartridges

Chard's revolver that he used at Rorke's Drift is on display at the Royal Engineers Museum. I think there is also a photo of the specific revolver on the website.

I remember seeing it in person back in like 2013 - was a very interesting experience!

Click Here

Thank you for that attachment. Beautiful photoos and informative.

Stand to

Here is a link to Chard's Webley at the RE Museum. http://81.145.194.75/Details/collect/11775

great information and links. thanks to all.