chuck perry
Member
I am setting up a 1911 in 400 Corbon and would like to find load data for Hogdon powders such as CFE, HP-38 and Longshot. Has anyone here used such powders for the 400 Corbon?
400 Corbon
- Thread starter chuck perry
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Ivan the Butcher
Member
400 Corbon=357 Sig on steroids! maybe on double steroids!
Ivan
I went on Hodgdon's data page and they had no listing. Went to 1911 forum and the only powder's name given is 800x (pretty slow!)
I'm not interested in that round, but you are talking a 10MM with 25-40% more capacity. Add 15% to a 10mm load and work up from there. Good luck.
Ivan
Ivan
I went on Hodgdon's data page and they had no listing. Went to 1911 forum and the only powder's name given is 800x (pretty slow!)
I'm not interested in that round, but you are talking a 10MM with 25-40% more capacity. Add 15% to a 10mm load and work up from there. Good luck.
Ivan
DWalt
Member
I just use 10mm load data in mine, but on the starting end, and I use mainly cast bullets. Actually, it is one of my favorites. Easy to form all the brass you want from .45 ACP. Only disadvantage aside from being a reload-only proposition is a smaller magazine capacity. Absolutely 100% functional reliability. I really do not need or want to use full power 10mm performance, even though it would be easy enough to get it.
This the data I have:
135 JHP AA5- 10.4, Unique -8.0 (MV around 1275)
150/155 JHP AA5-9.8, Unique-7.6, AA7-13.0 (MV around 1225)
165 JHP AA5-9.0, Unique-7.0 (MV around 1100)
145 Lead AA2-5.1, AA5-8.1 ((MV around 1000)
165 Lead AA2-5.5, AA5-7.2 (MV around 1000)
170 Lead AA2-5.6, AA5-7.0 (MV around 950)
This the data I have:
135 JHP AA5- 10.4, Unique -8.0 (MV around 1275)
150/155 JHP AA5-9.8, Unique-7.6, AA7-13.0 (MV around 1225)
165 JHP AA5-9.0, Unique-7.0 (MV around 1100)
145 Lead AA2-5.1, AA5-8.1 ((MV around 1000)
165 Lead AA2-5.5, AA5-7.2 (MV around 1000)
170 Lead AA2-5.6, AA5-7.0 (MV around 950)
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OP
chuck perry
Member
DWalt, thanks for that info, that makes sense. Have you experienced any set-back issues using cast bullets? I was thinking that cast bullets made for the 38-40, with their crimping groove, might be a good option.
So far I've made up a few dummy rounds with plated bullets. The Lee crimp die seems to lock them in pretty tight. Time will tell once I actually run them in the pistol.
So far I've made up a few dummy rounds with plated bullets. The Lee crimp die seems to lock them in pretty tight. Time will tell once I actually run them in the pistol.
DWalt
Member
Setback has never been a problem for me. I have mainly formed brass from .45 ACP having the small primer pockets. Just a personal thing. I use a set of Lee dies.
OP
chuck perry
Member
That's exactly what I will be doing. I have a bunch of Federal SPP once fired that I'll be making brass from, using Lee dies.
venomballistics
Member
The 400 corbon kinda fell into obscurity rather quickly.
The ability to form brass from 45auto keeps it viable.
The problem that remains is limited data. They stuck a fork in it before CFE pistol was even a thing.
Frustrating to be sure... I love the cartridge myself
I hear tell that the 40 super has taken it's place.
Might be worth a look if it's better supported.
Meanwhile, some data exists in the dark recesses of the web. Might do just as well with Gordon's reloading tool and a gallon of holy water
DWalt
Member
Here is a little more reloading data.
https://reloadammo.com/400-corbon-reloading-data/
https://reloadammo.com/400-corbon-reloading-data/
Many years ago when 800-x was used for steel duck loads and pistol;
I used it in some 38 special loads with the 158 Lwc for some medium to hot loads.
Be very careful with this powder,
since it Spikes in it's preassure, when it reaches top end FPS and maximum loads.
Good luck.
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Cartwright Jones
Member
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Actually, the .40 S&W and 10mm took its place. I got all hot about the .400 Corbon, got the dies, worked up the loads, even bought some expensive factory ammo to see what magic they were working. At the end of the day, my .400 Corbon experience convinced me to buy a 10mm and call it a day. Bottleneck pistol cases all have a problem with bullets being pushed in, and the .400C was worst of all in a 1911. The blunt bullets butted into the frame ramp and were only to happy to deep seat and fail to chamber.
A straight wall case such as the 10mm has no such issue and produces more velocity. Hot loaded .40 S&W can easily approach 600 fpe in a straight case. Heat up the 10mm and run it through a 6" barrel and it can easily hit 800 fpe. Just no need to deal with the idiosyncrasies of the .400 Corbon in the face of perfectly ready, turn-key solutions.
Bottleneck rounds that impact nose-on to the feed ramp are NOT viable for handguns in my opinion. The only bottleneck rounds I know of that chamber perfectly are the 5.7 and the .22TCM, .22TCM 9r, and 5.56x24 because they ALL impact the feed ramp with the case shoulder, NOT the bullet's nose!
OP
chuck perry
Member
They can be challenging for sure! I reloaded 357 SIG for years and had similar problems. We'll see how the Corbon runs. The dummy rounds I made up chambered fine when I handcycled them from the magazine into the standard 45 barrel. No hang-ups or nose dives into the feedramp. One of the things I've read is that Corbon recommended using bullets with a cannelure. I have a CH4D cannelure tool so I will add that process to the mix.
venomballistics
Member
I've encountered the same issue, Wilson Combat mags solved the problem for me.
Pretty sure 10mm lead the pack, being a Jeff Cooper development working with 38-40 brass on the way to the development of the Bren Ten.
OP
chuck perry
Member
I think magazines are definitely the key. I had a 1911 in 357 SIG and had to try several different brands/follower styles to get it right. For my 400 Corbon I'll be running Tripp Cobra mags. The good thing with the Corbon is that there are about a billion different 45ACP magazines to try!
maxfam
Member
Magazine adjustment is crucial for smooth operation. I also use the Lee 400 CorBon Factory Crimp Die that helps prevent bullet setback.
OP
chuck perry
Member
Maxfam, can you tell me more about your pistol and loads? Appreciate the input, there are more people enjoying this round than I expected.
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DWalt
Member
My gun is just a plain Ithaca GI M1911 with a .400 CorBon barrel and run-of-the-mill GI .45 magazines. Never had the slightest problem with feeding and setback that others describe. No interest in .40 S&W or 10mm, own nothing chambered in either of those. The .400 CB does all I need in the .40/10mm class, and I don’t care about magazine capacity. 8 rounds is plenty for me.
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venomballistics
Member
yes ... we have options ... and options to the options.
I approached mine from a common platform philosophy.
I swap a barrel and a spring to convert the host 1911.
kinda like a mag fed TC contender.
Once I got it singing, I had a remarkably accurate pistol on my hands. about the only gripe I have is the limited range of bullet weight. 165 grain and lighter seems to be it's thing.
Not exactly what we want for a deep woods back up, but for street defense, it's velocity puts it on similar ground as a 357 snub slinging 125's.
but enough arm chair commando consideration ... it's accuracy made it a fine range gun for me while it's velocity made for a fun plinker where one wants to see thing vanish in some kind of cloud or mist.
I'll have to see if I can set it up in gordons reloading tool in the interest of getting a few more modern powders working in it.
My load used alliant power pistol.
Like most things Alliant, it's not exactly abundant.
venomballistics
Member
I've worked it up in gordons reloading tool.
I'm sure the model is off at this point, with known data and results in some agreement.
behind a 155 grail XTP, @ 1.225" COL, we get an absolute COMPUTED maximum of 8.5 grains of CFE pistol.
A start load of 6.5 grains seems a prudent starting point. It'll get it out the barrel. definitely take your time climbing the ladder
I'm sure the model is off at this point, with known data and results in some agreement.
behind a 155 grail XTP, @ 1.225" COL, we get an absolute COMPUTED maximum of 8.5 grains of CFE pistol.
A start load of 6.5 grains seems a prudent starting point. It'll get it out the barrel. definitely take your time climbing the ladder
Don't know about the .400 Corbon but the Tripp Cobra mags have tamed more than one fussy .45acp with on/off feeding issues for me. There may be some folks, one of which I am not, that can" actually tune a mag but the Tripp's have run in every 1911 I have owned.
OP
chuck perry
Member
I made a couple more dummy rounds today with bullets I have on hand, 160 and 180 lead flat points. I used minimal case mouth expansion and crimped with the Lee FCD. I tested case neck tension by pushing the cartridges, bullet down, on my benchtop. Those things are locked in tight, the FCD is a heck of a useful tool for stuff like this. I don't think I'll even fool with adding a cannelure. The only thing I might add is to inside chamfer the case mouths to ease seating and hopefully eliminate any shaving that might occur when seating the cast bullets.
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