400 Corbon

J

JJCook

New member
Lately, I have heard alot about this 400 Corbon round. I have yet to put it to the test. If anyone has fired this round, please give me your thoughts. Also, what the %$#* is it fired from? A 40 or 45? I know it's a .45 case bottleneck housing a .40 round, so is it safe to say it's fired from a .45? HELP!!!!

JJC
 
JJ:

It's fired from a .45 platform, but with an aftermarket, .400 Cor-Bon barrel. I've reloaded and shot five or six thousand rounds of .400 Cor-bon through my Glock 21. (Note: .400 Cor-Bon won't feed through Glock 21 hi-caps; you have to use the 10-rounders).

I also have a 70 Series Gold cup outfitted with a .400 Cor-Bon barrel.

It's accurate, hotter than a .40 caliber, an fun to shoot. If you reload, I'd recommend that you cannelure your bullets, in order to avoid bullet setback.

Both my Glock and my Colt have threaded, compensated, Accu-Match barrels.

BTW, I use only virgin .45 Super Starline brass, which I form by running it through my .400 Cor-Bon sizing die. The .45 Super sports the thickest brass that you can buy for forming .400 Cor-Bon.
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Shoot to kill; they'll stop when they're dead!


[This message has been edited by WalterGAII (edited February 19, 2000).]
 
Be careful! That round is high high pressure and has blown up up several .45s in the Glock family. Cool idea but not wortht he risk of Kb IMHO.

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The Seattle SharpShooter
 
Since Glock doesn't make a gun in .400 Corbon it is necessary to get an aftermarket barrel chambered for the round. Since just about all of the aftermarket companies fully support the casing I don't see how a Glock would blow up from using a .400 Corbon. Is there any documentation of these Glock failures?
 
JtDuncan: Wrong. The .400 Cor-bon is not a high-pressure round. Its pressure is just a little higher than .45.

tBeck: I might be the only person in the U.S. who's blown up a G21, shooting .400 Cor-bon. Had nothing to do with high pressure. Had to do with my firing a round that I'd reloaded, and which round had jammed on the feedramp. Most any caliber will blow up your gun, if you fire a round that's been setback sufficiently.

I was trying to get the .400 rounds to feed from my G21 hi-caps. They just won't do that. They feed fine from the 10-rounders. The stack angle is too shallow with the hi-caps, permitting severe nose-diving. I tried lots of combinations of springs and followers, etc., with no good results.

I now use only Glock factory 10-round mags and cannelure all my bullets. I've fired several thousand rounds successfully through my replacement G21, with absolutely no problems. I also have a Gold Cup converted to .400 Cor-Bon. No problems there, either.

I use .45 Super brass from Starline with which to form .400 Cor-Bon cases. Have to start with light powder charge, due to reduced case capacity of .45 Super.
 
Walter,

Thanks for the clarification. I thought we were headed for another round of mysterious Glock explosions. That horse has just about been beat to death.

I am eyeing the Triton .400 Super conversion. It uses the .45 Super brass necked down to .400 and has considerably more zip than the .400 Cor-Bon. Thanks for the heads up on the high-cap mag problem. Luckily, I have a couple 10-rounders too.
 
TBeck:

What you're talking about is .40 Super, from Triton. It is considerably hotter (and with much higher pressures) than .400 Cor-Bon. It's not made, however, from a .45 Super case. It's made from a .45 Win.Mag. case, cut back to the same length as a 10mm case, then necked down to .40. It also uses eithe a magnum small pistol primer or a small rifle primer.

I've received 100 pieces of free .40 Super brass and a box of .40 Super 135gr. (1800fps @ 971ft/lbs of energy) from Fernando, of Triton. He's also going to send me free dies. I'm on a list to get a threaded, compensated .40 Super barrel for my G21. I'll post the results if I ever get it all together.

Meanwhile, I've become pretty proficient at loading .400 Cor-Bon safely. I'm using 160gr. West Coast plated bullets. Would not want to recommend a powder charge, as I'm using .45 Super brass, which has a smaller case capacity than standard .45 ACP brass.
 
Installed a Clark 400 CB barrel in my 45ACP 1911.

Accurate, hot, best with bullets in the 135-165g range.

Just interesting and accurate; novelty cartridge.

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"All my ammo is factory ammo"
 
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