Who has more details on modified 25-pdr guns such as the
25-pdr Short Mk I (Aust) on Carriage 25-pdr Light Mk I (Aust)?
As far as I know, the Short 25-pdr gun was an Australian pack gun version of the British 25 pounder gun/howitzer, developed as a result of experience in the jungles of New Guinea indicating the need for really portable artillery. First produced in 1943, it was a shortened version of the standard 25 pounder, mounted on the Carriage 25-pdr Light, Mark 1. The "Baby 25-pdr" was intended for jungle combat and was used in Southeast Asia and the Pacific, during World War II. The gun could be towed by a light vehicle or broken down into sections, capable of pack transport.
The only resemblance to the 25pdr was the breech mechanism, recoil system, cradle and sights. The trail was simplified, wheels made smaller, and castor added to the end of the trail for easier manhandling. The shield and and platform were discarded, and a heavy spade added to anchor the gun while firing. The gun itself was drastically shortened to 46.69 inches, and a muzzle cap added, which gave a total length of 63.79 inches. Broken into 14 packs the total equipment weight was 3,015 Lbs. It could not be used with supercharge, so the maximum range was only 10,800 yards.
Shown below is a survivor, ex-Rod Keys, now in the collection of the Meandarra ANZAC Memorial Museum in Australia.
Source:
http://armygear.org