I have set three different proportions and sizes, choose the one you like (I don't think a 1:72 ratio can print successfully as it is too small)
The Enfield No. 2 was a British top-break revolver using the .38 S&W round manufactured from 1930 to 1957. It was the standard British/Commonwealth sidearm in the Second World War, alongside the Webley Mk IV and Smith & Wesson Victory Model revolvers chambered in the same calibre. Note that in the context of British service revolvers, the .38 S&W cartridge has often been called ".380"1.
History
After the First World War, it was decided by the British Government that a smaller and lighter .38 calibre (9.2 mm) sidearm firing a long, heavy 200 grain (13 g) soft lead bullet would be preferable to the large Webley service revolvers using the .455 (11.6 mm) round.[2][3] While the .455 had proven to be an effective weapon for stopping enemy soldiers, the recoil of the .455 cartridge complicated marksmanship training.[4] The authorities began a search for a double-action revolver with less weight and recoil that could be quickly mastered by a minimally trained soldier,[5] with a good probability of hitting an enemy with the first shot at extremely close ranges.[6] By using a long, heavy, round-nosed lead bullet in a .38 calibre cartridge, it was found that the bullet, being minimally stabilised for its weight and calibre, tended to 'keyhole' or tumble longitudinally when striking an object, theoretically increasing wounding and stopping ability of human targets at short ranges.[7][8] At the time, the .38 calibre Smith & Wesson cartridge with 200-grain (13 g) lead bullet, known as the .38/200, was also a popular cartridge in civilian and police use (in the US, the .38/200 or 380/200 was known as the ".38 Super Police" load).[8] Consequently, the British firm of Webley & Scott tendered their Webley Mk IV revolver in .38/200 calibre.[9] Rather than adopting it, the British authorities took the design to the Government-run Royal Small Arms Factory at Enfield, and the Enfield factory came up with a revolver that was very similar to the Webley Mk IV .38, but internally slightly different. The Enfield-designed pistol was quickly accepted under the designation "Revolver, No 2 Mk I" (single/double action, with a hammer spur), and was adopted in 1931,[10] followed in 1938 by the Mk I* (lightened trigger pull, spurless hammer, double-action only),[11] and finally the Mk I** (simplified for wartime production) in 1942.[12]
Webley sued the British Government for £2,250, being "costs involved in the research and design" of the revolver. Their action was contested by Enfield, who stated that the Enfield No 2 Mk I was actually designed by Captain Boys (the Assistant Superintendent of Design, after whom the Boys Rifle was named) with assistance from Webley & Scott, and not the other way around—accordingly, their claim was denied. By way of compensation, however, the Royal Commission on Awards to Inventors awarded Webley & Scott £1,250.[13]
RSAF Enfield was unable to manufacture enough No. 2 revolvers to meet the military's wartime demands, and as a result Webley's Mk IV was issued as a substitute standard for the British Army.
I have set them to a 1:6/1:35/1:72 ratio for easy printing, and the size comes from the data provided by the encyclopedia. You can adjust its size to any place by yourself.
Note: If using the model for 3D printing, model repairs may be needed.