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NitroXAdministrator
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The .404 Jeffery
      #394614 - 30/11/25 03:47 AM



The .404 Jeffrey
June 8, 2024
Guns
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Calibre Description and Specifications
The .404 Jeffery is a large calibre rimless bottleneck cartridge that was originally designed with the dangerous game of Africa and India in mind. This cartridge has also been called the .404 Jeffery Rimless, .404 Rimless Nitro Express, and in Germany, as the 10.75× 73mm. The dimensions of the cartridge are shown in Figure 1. The maximum overall length of the cartridge is 3.350”.


Figure 1
The case uses a large rifle magnum primer and has a relative capacity of 113 grains of water (7.3 ml). When fired the cartridge generates a maximum pressure (C.I.P) of 52 938 pounds per square inch (364.99 MPa). The case rim thickness is 0.05” (1. 3 mm).

The .404 Jeffery is shown alongside a .505 Jeffery and .375 Holland and Holland in Figure 2 for comparison.



Figure 2
History
The cartridge was designed by the great British gunmaking company W.J. Jeffery & Co of England. They wanted to duplicate the performance of the .450/400 (3 ¼ “) cartridge.

Prior to 1912, W.J. Jeffery built .404 Rimless Nitro Express rifles on ex-military, standard length, 98 Mauser actions produced by Mauser Werke Obendorf that had the action and magazine box modified to fit (Figure 5).





Continued

https://africanxmag.com/2024/06/08/the-404-jeffrey/





--------------------
John aka NitroX

...
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Edited by NitroX (30/11/25 04:08 AM)


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NitroXAdministrator
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Re: The .404 Jeffery [Re: NitroX]
      #394617 - 30/11/25 04:12 AM



A .423 .404 Jeffrey, with 450 gr projectiles, at 2,150 fps is pretty much the same as my .458 .450 No.2 Nitro Express double rifle, with 480 gr projectiles at 2,170 fps.

The two rifles, my scoped bolt action, and double rifle, make a good combination.

--------------------
John aka NitroX

...
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"I love the smell of cordite in the morning."
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DarylS
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Re: The .404 Jeffery [Re: NitroX]
      #394623 - 30/11/25 07:45 AM

I read an article about the .404 Jeffery back in the late 60's, in "Handloader" magazine.
That was my "want" gun for African hunting for several decades. That never came to fruition, but the ballistics stuck with me.
400gr. at 2,150fps from my .458 American on a VZ34 Mauser - for almost 4 decades.

--------------------
Daryl


"a gun without hammers is like a Spaniel without ears" King George V


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m239
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Re: The .404 Jeffery [Re: DarylS]
      #394628 - 30/11/25 01:57 PM

The masthead image in the linked article is 'interesting'.

Maybe the proofreader was away on the day of publication, or it was an AI endeavour?

Jeffery spelt wrong.

The rifle pictured appears for all the world to be a Rigby Highland Stalker - which is left handed, presumably due to a flipped image, as Rigby don't list a LH variant.

OCD observations over.

Love the pics of the old workhorse, with it's sideless magazine 'box' - is that ypur rifle John?

I'm a big fam of the .404. Mine is on a CZ550, with a Lothar Walther barrel, incredibly soft shooting and accurate. It's been on the trail of a decent buffalo that got the better of us after 3 days tracking - so is yet to be suitably christened. Pig and foxes do not count ;-)

I like the idea of the 450 grain projectile.

It is good to see Rigby now offering their Big Game chambered in this cartridge.

And that classic long neck ... who says cartridges are judged on aesthetics? ;-)

--------------------

Adventure is worthwhile
~ Aesop


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NitroXAdministrator
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Re: The .404 Jeffery [Re: DarylS]
      #394631 - 30/11/25 05:23 PM

Quote:

I read an article about the .404 Jeffery back in the late 60's, in "Handloader" magazine.
That was my "want" gun for African hunting for several decades. That never came to fruition, but the ballistics stuck with me.
400gr. at 2,150fps from my .458 American on a VZ34 Mauser - for almost 4 decades.




The 400 gr 2,150 fps .404 ballistics are it's original ballistics from overva hundred years ago.

Modern powders get it up to 2,300 fps, maybe more. I've never used a chronograph with mine. Or don't remember the speeds if written down.

Some articles still refer to it's ballistics of 2,150 fps as modern ballistics. Those writers have probably never shot one , and just repeat what others have written and they've read.

--------------------
John aka NitroX

...
Govt get out of our lives NOW!
"I love the smell of cordite in the morning."
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Claydog
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Re: The .404 Jeffery [Re: NitroX]
      #394632 - 30/11/25 05:41 PM

I have a 1907 Jeffery and have used it for a good while now. Not so much lately but there were times I used it every day. Well carried it every day, used it on some. It survived a rollover and somehow jumped out of the back of the Toyota and had to be back tracked for 3 hours once. The foldings leafs are loose and had to be taped down and the safety doesn’t like to be engaged any more. Still a hell of a gun and puts those Woodleigh solids right where you point. Anchored a lot of escaping animals with it and saved one Mexican hunter and me from a sticky ending. It’s light, being built on a standard military action and you know when you fire it. No engraving or even fancy makers name and address on the barrels, just stamped W J Jeffery on the barrel and action. I could have done the same things with a 458 or 416 but I didn’t and it will always be special to me.



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lancaster
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Re: The .404 Jeffery [Re: Claydog]
      #394633 - 30/11/25 05:43 PM

this cartridge is imho, the best "allround cartridge" ever. everything looks right for me with this round.

--------------------
Norwegian hunter misses moose, shoots man on toilet
.
bringing civilisation to the barbarians


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m239
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Re: The .404 Jeffery [Re: lancaster]
      #394636 - 30/11/25 05:56 PM

Clayon - I love your .404

It's absolutley the real deal.

--------------------

Adventure is worthwhile
~ Aesop


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NitroXAdministrator
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Re: The .404 Jeffery [Re: m239]
      #394638 - 30/11/25 07:49 PM

Quote:

The masthead image in the linked article is 'interesting'.

Maybe the proofreader was away on the day of publication, or it was an AI endeavour?

Jeffery spelt wrong.

The rifle pictured appears for all the world to be a Rigby Highland Stalker - which is left handed, presumably due to a flipped image, as Rigby don't list a LH variant.

OCD observations over.

Love the pics of the old workhorse, with it's sideless magazine 'box' - is that ypur rifle John?

I'm a big fam of the .404. Mine is on a CZ550, with a Lothar Walther barrel, incredibly soft shooting and accurate. It's been on the trail of a decent buffalo that got the better of us after 3 days tracking - so is yet to be suitably christened. Pig and foxes do not count ;-)

I like the idea of the 450 grain projectile.

It is good to see Rigby now offering their Big Game chambered in this cartridge.

And that classic long neck ... who says cartridges are judged on aesthetics? ;-)




True. I didn't pick ypmthe misspelt "Jeffrey", on both of the first two graphics. Seeing the author got the name right, I'm guessing whoever created the graphics got it wrong.

I don't know about the veracity of the images.

No my rifle is not in the photos. The photos are linked from the African Expedition Magazine article. I only copied part of the text, and linked only some of the images. Go to the article link for the full story.

I might have a box of 450 grs ,404s to try. Good to see both Weldcore SPRNs and FMJs. Essential to have both for buffalo, and FMJs for elephant. The 450 gr brings the .404 into .450 type performance, certainly superior to a .458 Win Mag using 450 gr projectiles, for penetration at the same or similar speeds. Only minor differences is the lesser frontal calibre size.

I agree, it's nice to see Rigny offering the 404cJeffery as a choice for its Big Game Rifle models.

Curl carried my Mauser M03 with the .404 Jeffery barrel when he visited We had opportunities for a huge Brahmin scrub bull, but he declined he take it. It also felt a bit of a shame to me, to waste most of that huge beasts excellent beef, Feed a family for a year! A good choice as well, as we were maybe 300 metres away from the water buffalo wetlands, and it would have vacated them off. They did detect us though and we very gooey and ran off. For good, I learned, they did not return at all. We wasted two more walks there, and they never returned The wetlands there were five times the size as when JB visited. It was much wetter this time.n And far more water areas. A reason the Buffalo left for elsewhere,

Later we came across water buffalo right near camp An opportunity to take a water buffalo cow, which was also declined. That area was wet this trip, previously with JB all that area had been dry. One learns from each trip, more information on a hunting area, Alas that was the last trip to that cattle station. Another visiting Hunter messed it up for everyone non local.

So my .404 has not yet been blooded on water buffalo at least. I usually do carry my .450 Nitro Express double rifle as a choice.

My next trip, whenever it is, I'd like to very much to give my Westley Richards 10-bore double rifle a gominbwater buffalo, scrub bulls, banteng!, boat, donkeys and whatever. Return it to its memories of India and the Raj. Maybe even try it on deer here in SA. I need to work up loads for it, to see what it will be capable of. A local BP shooter, I shoot no handguns with, I learned a fortnight ago also bid on this rifle! Years ago. Somivebbeen requested to take it to the next handgun shoot So I also need to get some ammunition loaded up for it, next year, so they can shooting as well.

But maybe carry my working rifle 404 as well. For longer range shots? I'd like to give it a gomon water buffalo and the rest of Top End species. My .450 Jeffery will get jealous.


The .404 barrel is the top barrel on the zebra skin under the case. With a good rear open sight. And a banded front sight. It's a bit shorter than some of the other barrels, The 8x68S is 650 mm. Most are 600 mm. Maybe the 404 is 550 mm Makes a good handy length dangerous game bolt action. A 1x scope or open sights. Not a nice vintage Jeffery .404 but a useful DG rifle in any weather conditions, in the Mauser M03 Extreme model rifle. Two magazines allows sustained firepower.

My .404 is not a pretty vintage Jeffery Mauser 98, alas. Maybe one day I'll have one. It's one of my only two synthetic stocked rifles. With the 8x68S barrel, the .404 was desired for a trip to Alaska one day,or Wild parts of Canada. I do have a second M03 with a somewhat Germanic walnut stick as well now. That rifle was purchased to create a classic modern custom Mauser styled rifle with. Another future project!



My Mauser M03 Alpine model, which could wear the .404 barrel

The Mauser M03 rifle allows a solid turn bolt rifle platform.

The .404 needs some good lighter well constructed medium game bullet. Originally it had the 300 gr. No kidding it wasn't suitable for Dangerous Game. That's a no brainer, and was never an intended use. Does anyone make good 300 gr .423 bullets? Woodleigh makes 350 gr .423 bullets. For me, theres not enough difference to a 400 gr to bother with it. A 300 great 75% of the normal weight makes sense. Same as ,458 350 gr and 480/500 gr bullets. A .423 350ngr and 450 gr bullet loads might make sense. I do have some Raptor 257 gr .423 bullets to try out. A flat shooting 250 gr .423 at fast velocity might make a very versatile .404 scopec bolt action.

Of course using different loads and bullets in the same rifle assumes reasonably close point of impacts.

Back to the article. I don't think I've ever heard of the ,404 used in India? I'm sure it would have been. Being an affordable Mauser 98 bolt action choice for lesser wealthy colonial officials. The .404 was the game department working rifle choice in various African colonies. Can anyone expand on this? Expand on any authors or famous hunters using it?






--------------------
John aka NitroX

...
Govt get out of our lives NOW!
"I love the smell of cordite in the morning."
"A Sharp spear needs no polish"


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NitroXAdministrator
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Re: The .404 Jeffery [Re: Claydog]
      #394639 - 30/11/25 07:54 PM

Quote:

I have a 1907 Jeffery and have used it for a good while now. Not so much lately but there were times I used it every day. Well carried it every day, used it on some. It survived a rollover and somehow jumped out of the back of the Toyota and had to be back tracked for 3 hours once. The foldings leafs are loose and had to be taped down and the safety doesn’t like to be engaged any more. Still a hell of a gun and puts those Woodleigh solids right where you point. Anchored a lot of escaping animals with it and saved one Mexican hunter and me from a sticky ending. It’s light, being built on a standard military action and you know when you fire it. No engraving or even fancy makers name and address on the barrels, just stamped W J Jeffery on the barrel and action. I could have done the same things with a 458 or 416 but I didn’t and it will always be special to me.






Very nice mate even given its hard use.

My Mauser M03 with the .404 barrel also is not heavy but does have sharp recoil. Perhaps stock design as well?

--------------------
John aka NitroX

...
Govt get out of our lives NOW!
"I love the smell of cordite in the morning."
"A Sharp spear needs no polish"


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Rule303
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Re: The .404 Jeffery [Re: Claydog]
      #394643 - 30/11/25 08:40 PM

Claydog, your rifle has plenty of character. To me that is one bloody good looking rifle. But for the price of the CZ 550 in 404 I would have had that instead of my 416 Rigby. No I don't feel duded both are very good calibres.

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93x64mm
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Re: The .404 Jeffery [Re: Rule303]
      #394661 - 01/12/25 07:31 AM

Just because the rifle is getting a little bit on the older side like Claydog's (like most of us unfortunately) doesn't mean its no good!
She's a beauty alright, still gets the job done


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Marrakai
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Re: The .404 Jeffery [Re: 93x64mm]
      #394667 - 01/12/25 01:29 PM

Certainly has the look of a serious "working" rifle, Clayton.

As does the example photographed apart in the article earlier.

Much more appealing to my eye than the shiny new examples!

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Marrakai
When the bull drops, the bullshit stops!
--------------------------------
www.marrakai-adventure.com.au


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