37-mm 1 1/4 pounder Mk 3

**saintlo990** · 11th June 2009, 04:02 PM

My notes for the Vickers sales log on the MK III says:

Factory ser no 2538A -2545 (8 total) Boat mounts
Note:These guns were orignally supplied for Chilian Battlecrusier? "Liberadao" & "Constituccion". Ships were taken over by British and govt to rename Triumph and Swiftfire. Guns were bought back by VS. see contrat 78. Later supplied to Chile on con 8052/24550

(Note on above- could not make out the word Battle ?- Not anything like a destroyer though.)

(The Vickers serials were contineuos for all makes of Maxim Pom Poms, but numbers were changed in military service.)

(There were many Mk III guns supplied to shipbuilders, Italy, Plalencia, Yarrow, Armstrong. But none of the notes mention Canada or direct sales to Britain.)

**Quatermass** · 11th June 2009, 09:22 PM

As requested by Gspragge. Comparison between a 1 PR common shell and 1 1/2 PR common pointed.

**Gspragge** · 11th June 2009, 09:56 PM

As these show the feed for the 1 1/2 Pr. will be a good inch wider than the
1 1/4Pr.

So far there is;

1 1/4 Pr in Ottawa, 1 Pr. in the Citadel Quebec (shown in the Devils Paint Brush book on the Maxim) and a 1 Pr. & 1 1/4 Pr. at Fort Henry Kingston Ont.

**Doug** · 13th June 2009, 06:49 PM

Hi

The CWM also has a VSM 1-pr Serial no 2493 VSM 1905.

Doug

**Gspragge** · 14th June 2009, 02:40 AM

Comparison on the feed block slot widths. They should be different.

**TonyE** · 14th June 2009, 09:37 AM

Just to add a couple of points to Tim's post about Swiftsure and Triumph. There was originally some reluctance on the part of the RN to purchase these ships as they were quite different in fit to any existing RN vessels, but the politics of the time dictated purchase in 1904.

The ships were also fitted with 7mm Maxim guns and there is some evidence that these were taken into British service, at least for a time. There is another Vickers drawing of the 7mm ammunition which is titled with the British nomenclature "Cartridge, S.A, Ball, 0.276 inch, Mark I |N|, Small Arms and Machine Guns, H.M.S. Swiftsure and Triumph". In addition there is also an Inspector of Small Arms Ammunition reference number on it.

Regards
TonyE

**charley777** · 6th November 2011, 03:01 AM

And the Triumph and Swiftsure were equipped with 14 pounder guns that used, i think, a very similar case to the 12Pr 18cwt (76.2x512R x114).
Can anyone provide further info on the 14Pr guns (if they had other uses) and especially, can anyone confirm that they used the same case as the 12Pr 18cwt?
Thanks very much, Charley

**Gspragge** · 6th November 2011, 10:04 PM

Here are Highland Otters 1 1/4 Pr. & 1 1/2 Pr. Mklll. The case is identical only as noted previously the 1 1/2 Pr has a longer projectile. This case has a wider base than the regular 1 Pr.

So a 1 1/4pr & 1 1/2pr will have a slightly deeper feed and a wider breech block. The 2 Pr. used the same casing base size but it is not necked and the whole thing is longer again.

**bdgreen** · 15th December 2011, 06:57 PM

To see a WW1 vintage picture of the gun on board the HMS Canada (or a similar gun) pictured at the beginning of this thread see the following flickr image:

http://www.flickr.com/photos/1611816.../pool-greatwar

You can enlarge this image by choosing 'Actions' located above the image on this flickr image page.

This is my first post to BOCN and I enjoy this web site and the info shared therein very much!

Brian