Jeff from New Zealand (the owner of Beaver Grease) sent us a photo of a his Wesley Richards .310 Greener (Cadet) with recreated woodwork. The rabbit was taken with a CBE 325-125 cast lead heel bullet over 5gr Unique. I must admit I had never heard of this cartridge before. This is what wikipedia says about it …

The .310 Cadet, also known as the .310 Greener, or the .310 Martini, is a centerfire rifle cartridge, introduced in 1900 by W.W. Greener as a target round for the Martini Cadet rifle. Firing a 120 grain heeled lead projectile at 1200 ft/s the round is similar in performance to the .32-20 Winchester and many rifles may chamber both rounds with some accuracy.

The round was used in cadet rifles in Australia and New Zealand after early 20th-century Defence Acts. In New Zealand, after the start of the Boer War, a cadet corps had been started; by 1901 it was recommended that membership be compulsory. 500 Westley-Richards miniature Martini–Henry rifles were available by October 1902 (Auckland Star), and 5000 by April 1903 (Star). Such rifles gained popularity in Australia, New Zealand and the United States when thousands of Martini Cadet rifles were sold by the Australian government after World War II.

The loads tend to have between 500 – 600 ft/lbs (120gr at 1500 fp/s), which is equivalent energy to a hot +P .45 ACP load. 32-20 Winchester loads, which the Wikipedia article compares it to, it loaded with much less power, 200-250 ft/lbs.



  • El Duderino

    Two months hence there will be a TFB article about an AR in this caliber made by a company no one has ever heard of before.

    • TheNotoriousIUD

      Made for pirates, the ARRR-15.

      • Tassiebush

        You’re thinking too small. It could be marketed more broadly for pirates and landlords. “With the new ARRR-15 you can repel any boarder”

        • TheNotoriousIUD

          I bought a .22 belt feed kit for my M4 or whatever you want to call it but it never worked.

          • Tassiebush

            ARRR that’s disappointing!

          • TheNotoriousIUD

            Yeah, im looking at a 9mm upper now.

    • Edeco

      I can picture it: Styngir Tactical Platform Engineering. Their logo will be a scorpion with Norse runes. They will have developed the .310 Cadet AR in response to a request from a spec-ops group which must remain nameless.

  • Devil_Doc

    I’ve always liked the shape of the martini, wouldn’t mind owning one. And tell me you wouldn’t shoot a 44mag or 45 colt ar

    • Hudson

      If I found a Cadet Martini with a bad barrel, I would like to do one in one of the .32 super long pistol cartridges.

  • Hudson

    I have one of these that someone cut down, and rechambered in .32 Winchester Special, it’s a fun accurate gun. It makes a nice 1st deer hunt rifle.


    • Mark

      Yes! Loads of fun to shoot re-chambered in .32-30. Plenty of available ammo and components.

  • We oldtimers remember when Klein’s in Chicago had ads in the back of shooting magazines. They had some of these rifles for sale. They were sold cheap because there was no ammo available. A lot of them were re-barreled or rebored to .357 magnum and other calibers. Those were the days. You could mail order a surplus Springfield rifle for $30. My first center fire rifle was an Eddystone 1917 Enfieled from them. I think it cost $20.

    • gordon533

      I currently have one that was rechambered to 44 Mag, it is a great rifle that is lots of fun for my grand children to shoot. It was an improvement on the 22LR martini I started trained them on. We only shoot mild reloads in it so there is not a lot of recoil, but it will handle full loads if we wanted to shoot them

  • Edeco

    Really nice; ultra-classy way to cover, you know, that niche of gun performance.

  • Southpaw89

    Saw a cadet in a local Cabelas store chambered in in .32-20, must have been rechambered, if I only had had the money I would have picked it up.

  • Oldtrader3

    You never heard of it before and you are a gun writer? Yikes!

    • Cal S.

      Oh, you knew about this from birth? Everyone learns something new everyday. If we stop learning, we die. Either way, no call to be a jerk…

  • Tassiebush

    A .310 cadet is definitely on my wish list.

  • Alan

    Martini .310 cadet is still used widely in Australia for military shoots at many rifle clubs,not uncommon at all,and most enthusiasts reload their own shells.considered fairly accurate,& good for small game.can pick up a good one from A$250 upwards.

  • Cal S.

    I knew I’d seen that style of rifle somewhere!

  • Tejanojack

    Sure would like to find an original rifle and ammo! Any ex-pat Aussies or Kiwis have any for sale?