Another new cartridge... .429 DE, i.e. 440 Corbon copy

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MikeInOr

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Apparently Kahr / Magnum Research / Desert Eagle has introduced a new cartridge, the .429 DE. Basically a .50ae necked down to .429 (i.e. 44 magnum bullets) which will be 25% faster than a 44 mag with 57% more energy. 240gr bullets at 1600fps for 1405 ft.lbs and 210gr bullets at 1750 fps for 1427 ft.lbs.

In the 90's Corbon produced a 440 Corbon cartridge which was a 50ae case necked down to .429 that sent 240gr bullets down Desert Eagle tubes at 1800fps for 1727 ft.lbs of energy... which is 454 Casual energy levels.

https://www.shootingillustrated.com/articles/2018/10/31/first-look-429-de-pistol-cartridge/

I will save the next 50 posters the trouble... I know, who cares!
 
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If I were young and had money I would buy one of the first guns offered in this caliber. The 40 years later I would have a rare gun that I could sell for a lot of money when I retire.

My understanding is in the late 90's Desert Eagle made about 1000 .440 Corbon guns/barrels. Evidently the barrels are worth a fortune today because of their ballistics and rarity... So you are probably correct about a 429 DE being a good investment!

P.S. When I was young I wasted all my extra cash on those cheap mil surplus weapons of the 80's and 90's much to the chagrin of my parents. Unfortunately today they aren't worth a thing... because I can't bare to part with them.... LOL!
 
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So it's the weak .45 acp (.429 DE) version of the .45 super (.440 corbon) - ha ha ha.

I don't trust these necked pistol rounds to feed after my experience with .400 corbon. They have a tendency to nosedive and jam into the feed ramp, especially on the non-tilting barrel of a Deagle - they are unreliable enough as it is. But then again, no one is going to actually carry it, so who cares if it's reliable? What the heck; it's all for fun here.
 
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I saw this the other day as well. Kind of interesting. I also wondered about the advertised 1600 fps. (240 gr. bullet) of the .429DE as opposed to the advertised 1800 fps. from the .440CB.

Is one loaded to lower pressures? Or is the other just optimistic in their published velocities. Does anyone have any real-world velocity data from the .440CB?
 
I saw this the other day as well. Kind of interesting. I also wondered about the advertised 1600 fps. (240 gr. bullet) of the .429DE as opposed to the advertised 1800 fps. from the .440CB.

Is one loaded to lower pressures? Or is the other just optimistic in their published velocities. Does anyone have any real-world velocity data from the .440CB?

I was curious too so I did a little reading. From what I gathered the 440 Corbon was too hot for the Desert Eagle. Hence the limited production of 1000 and the quick discontinuance. Although both the 429 DE and the 440 Corbon are both 50ae cases necked down to .429 they are slightly different geometries. I do not know if DE lowered the shoulder so a 449 Corbon will not chamber in a 429 DE? I found mention of the 429 DE having a long enough neck to securely hold the 429 bullet and keep it from moving under recoil. I do not know if that was a problem with the 440 Corbon?
 
They’ve put it out before. It was called the 440 corbon mag.
 
I had a DE pistol in 440 Corbon for awhile. The thing worked fine, but ejected the empties into my face, death grip and all.
We also made about 20ea AR-15 uppers in 440 CorBon from 1998 - 2001. From a 17" barrel, it would push a 240gr bullet to 2,000fps.

Tony Rumore
Tromix


And I am one of the twenty or so folks that have a Tromix made 440 Corbon upper...
 
Haven’t heard much from them in awhile, I hope it gives them some sales. Keeps the wheels on the bus going round and round.
 
It would be fun, but before spending the money on one I would just get a .460 Rowland conversation for my 1911. Especially if I’m just gonna shoot a deer with it at 50yds.
 
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