.440 Corbon
- Thread starter BoogieMan
- Start date
http://www.shopcorbon.com/CORBON-Hunter/440-CORBON-240gr-CORBON-Hunter-JHP/HT440240-20/300/Product
http://en.wikipedia.org/wiki/.440_Cor-bon
Its a SA round with ballistics as good as a .454 casual.
305gr bullet at 1600fps from 440
300gr bullet at 1659fps from 454
I just have never heard of anyone actually shooting one or owning one. Did it just not catch on?
http://en.wikipedia.org/wiki/.440_Cor-bon
Its a SA round with ballistics as good as a .454 casual.
305gr bullet at 1600fps from 440
300gr bullet at 1659fps from 454
I just have never heard of anyone actually shooting one or owning one. Did it just not catch on?
Desert Eagle made a barrel for 440 Corbon many years ago. I've always wanted one; found a few over the years, but folks want way too much money for them. In fact, when I purchased my DE, one of the things I always intended to do was fit it for 440 Corbon. For some reason, one that I have never been able to get an answer to, DE made very few 440 barrels before they stopped making them.
They hyped the crap out of that round, got me all gizzied up for it, then never produced enough barrels. If anyone knows the complete story behind this, I'd love to hear it.
They hyped the crap out of that round, got me all gizzied up for it, then never produced enough barrels. If anyone knows the complete story behind this, I'd love to hear it.
mxsailor803
New member
Now thats a round I haven't heard about in a long time. Main thing I remember about it is its a pure screamer for the bullet weight.
I was on the design team for the 440CORBON. It worked a lot better than I thought it would at first, and we had a heck of a lot of fun helping to bring it to fruition. IT could crank some really impressive power for a 44 caliber pistol cartridge !
The DE pistol in itself was perfectly capable of handling the cartridge but it had a disconcerting ability of hitting the shooter right between the eyes with a fired case. It could biscuit your noggin as slick as can be and the blood would be pouring off your nose before you realized what had happened.
The biggest problem was having to deal with the DE folks who went out of their way to make things difficult when it would have been easier to be helpful. Never did really figure out just what their game was...
And so it goes...
The DE pistol in itself was perfectly capable of handling the cartridge but it had a disconcerting ability of hitting the shooter right between the eyes with a fired case. It could biscuit your noggin as slick as can be and the blood would be pouring off your nose before you realized what had happened.
The biggest problem was having to deal with the DE folks who went out of their way to make things difficult when it would have been easier to be helpful. Never did really figure out just what their game was...
And so it goes...
I was doing some research as to what happened to the .440 Corbon and found this thread as I had quite a few DE pistols and loved this round and was thinking of getting back in to it.
My personal experience was that the barrels for the DE in .440 did not hold up well to hotter loads, specifically the 300+ grain loads. In looking through my old shooting logs, I found that my first .440 Corbon barrel, a 6" one, had 650 rounds through it, all of 300+ gr loads, before a small bulge developed toward the rear of the barrel. It was sent off the Magnum Research and I eventually spoke to some of the folks there as they had not seen a barrel with this issue before. If memory serves me correctly, we discussed the volume of shooting I was doing, which was anywhere from 50 - 100 rounds per range session, and the loads used. The conclusion was that high volume shooting with the hotter rounds cut into the gas port that directs the gases through the barrel to the front where the piston is located (flame cutting). Magnum Research replaced the barrel for no charge under warranty.
I ended up using 240gr Hornady XTP bullets after that and went through 500 rounds in 6" barrel and 450 rounds in a 10" barrel and limited my shooting to 50 rounds at time with no further issues. I tried to find my chronograph data and load data but couldn't locate it (although I did find the CH4D die set). I want to say these rounds clocked at just shy of 2000 fps out of the 10" barrel as I recall a buddy of mine in Colorado was getting a little more at 2050 fps. The Hornady XTP bullets help up well to these velocities. Eventually, I sold off DEs to fund my new found machinegun habit.
My personal experience was that the barrels for the DE in .440 did not hold up well to hotter loads, specifically the 300+ grain loads. In looking through my old shooting logs, I found that my first .440 Corbon barrel, a 6" one, had 650 rounds through it, all of 300+ gr loads, before a small bulge developed toward the rear of the barrel. It was sent off the Magnum Research and I eventually spoke to some of the folks there as they had not seen a barrel with this issue before. If memory serves me correctly, we discussed the volume of shooting I was doing, which was anywhere from 50 - 100 rounds per range session, and the loads used. The conclusion was that high volume shooting with the hotter rounds cut into the gas port that directs the gases through the barrel to the front where the piston is located (flame cutting). Magnum Research replaced the barrel for no charge under warranty.
I ended up using 240gr Hornady XTP bullets after that and went through 500 rounds in 6" barrel and 450 rounds in a 10" barrel and limited my shooting to 50 rounds at time with no further issues. I tried to find my chronograph data and load data but couldn't locate it (although I did find the CH4D die set). I want to say these rounds clocked at just shy of 2000 fps out of the 10" barrel as I recall a buddy of mine in Colorado was getting a little more at 2050 fps. The Hornady XTP bullets help up well to these velocities. Eventually, I sold off DEs to fund my new found machinegun habit.
Hybrid 440 Corbon....
Some here may or may not know this.....but I'll get to the back story and it will show why I am posting....
Years ago, back when this round was NEW and available (2010 and earlier), Tromix (now into Saigas) made AR uppers. His baby then were 50 AE and a few 440 Corbons. But, the weak point on ANY AR15 upper was the modified bolt and extractor (had to be opened up and claw was "weak"). The claw may have been the demise of the round used in an AR...who knows. Or the cost of the 50 AE.
On AR15.com, about the time Tony Rumor (Tromix) made the 50 AE upper, (forgot the name) an individual came up with a hybrid.....it was called the .502 Thunder Sabre. It is basically a 50 AE CASE, BUT it uses a 7.62x39 head.
Fast forward to today, July 2015. This place: http://rjfirearms.org/us/ out of Oregon bought the rights to make the .502 T-Sabre. And brass is available.
Why do I mention. Well, if someone has an AR in 440 Corbon, you can simply swap out the old bolt to a 7.62x39 bolt and resize the .502 brass to do 440.
If you have an old 50 AE AR upper, you do the same. Some online say that the .502 T-Sabre is a short .50 Beuwulf (which uses a 7.62x39 head).
And if you have a DE, I say you are out of luck, sorry.....I don't recall all the bolt sizes available for the DE. I recall a 41 Mag and 44 Mag.....
I purchased some once fired .502 Thunder Sabre and once I find my resizing, I will reisze to 440 Corbon....well, a hybrid and load up some test rounds.
I have a .440 Corbon AR upper built by Tony Rumor of Tromix from years ago, and wanted to get it running again....
Some here may or may not know this.....but I'll get to the back story and it will show why I am posting....
Years ago, back when this round was NEW and available (2010 and earlier), Tromix (now into Saigas) made AR uppers. His baby then were 50 AE and a few 440 Corbons. But, the weak point on ANY AR15 upper was the modified bolt and extractor (had to be opened up and claw was "weak"). The claw may have been the demise of the round used in an AR...who knows. Or the cost of the 50 AE.
On AR15.com, about the time Tony Rumor (Tromix) made the 50 AE upper, (forgot the name) an individual came up with a hybrid.....it was called the .502 Thunder Sabre. It is basically a 50 AE CASE, BUT it uses a 7.62x39 head.
Fast forward to today, July 2015. This place: http://rjfirearms.org/us/ out of Oregon bought the rights to make the .502 T-Sabre. And brass is available.
Why do I mention. Well, if someone has an AR in 440 Corbon, you can simply swap out the old bolt to a 7.62x39 bolt and resize the .502 brass to do 440.
If you have an old 50 AE AR upper, you do the same. Some online say that the .502 T-Sabre is a short .50 Beuwulf (which uses a 7.62x39 head).
And if you have a DE, I say you are out of luck, sorry.....I don't recall all the bolt sizes available for the DE. I recall a 41 Mag and 44 Mag.....
I purchased some once fired .502 Thunder Sabre and once I find my resizing, I will reisze to 440 Corbon....well, a hybrid and load up some test rounds.
I have a .440 Corbon AR upper built by Tony Rumor of Tromix from years ago, and wanted to get it running again....