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Ithaca375
.224 member


Reged: 09/08/19
Posts: 12
Loc: Missouri Ozarks
500 Jeffery
      #353959 - 02/06/21 12:57 PM

Hey guys. Just grabbed a chamber reamer for 500 jeffery.
Looking forward to this build, a friend directed me to your wonderful forum.
Building on an Arisaka, which is going to be a new experience. I've built all my previous big bores on either the Mosin, AR, or AK platforms, mostly 375 H&H and it's derivatives.
This is my first try using a rebated rim cartridge too.
I'm a machinist by trade though, so I figure I can make a single stack magazine like Westley Richards used to make the 425 WR work in mauser rifles, since it was also a rebated rim.
Main issue right now is finding brass. I've had horrible experience with RCC in the past, and Norma seems to be out of stock everywhere.
Once I get a few, I'll load up some dummy rounds and start making the mag and inletting the receiver and bolt face. Super excited.
any advice?


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tinker
.416 member


Reged: 12/03/05
Posts: 4835
Loc: Nevada
Re: 500 Jeffery [Re: Ithaca375]
      #353960 - 02/06/21 01:09 PM

Midway has ammunition

https://www.midwayusa.com/500-jeffery/br?cid=20436

It's in stock elsewhere too


The 500 Jeffery is a completely different animal than anything that you've put through any of the rifles you mentioned.
Whole different world.

Go and shoot a real big bore rifle.
Shoot as many as you can before you start in on your stock design.

That's my first bit of advice.

--------------------
--Self-Appointed Colonel, DRSS--



"It IS a dangerous game, and so named for a reason, and you can't play from the keyboard. " --Some Old Texan...


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grandveneur
.400 member


Reged: 21/09/08
Posts: 1278
Loc: France / Germany
Re: 500 Jeffery [Re: tinker]
      #353962 - 02/06/21 04:17 PM

I would agree with that too.

I own an rifle of this caliber and shot amongst other things some elephants with it. It's a very good cartridge for this purpose.

Nevertheless, I would also warn about the recoil of rifles of this caliber. Many rifles of the caliber 500 Jeffery are sold again on a regular basis in our countries so it cannot be excluded that some people have problems with the recoil of this rifles.

Reduced loads or a lot of systems to reduce the recoil are not a good solution for an traditional big game rifle.

The recoil with regular non reduced loads is very strong, but anyone who is familiar with the recoil of rifles such as caliber 460 WBY-Magnum will not have any problems with that.

Edited by grandveneur (02/06/21 04:21 PM)


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93x64mm
.416 member


Reged: 07/12/11
Posts: 3954
Loc: Nth QLD Australia
Re: 500 Jeffery [Re: grandveneur]
      #353964 - 02/06/21 10:16 PM

Ithaca375
I'm not familiar with Nosler brass, but Norma brass is very good quality, I'd try that first if possible.
You wouldn't think that the Arisaka action would be long enough to shoehorn in that big Jeffery round, but hey mate if you can then you will certainly be a first from what I know of if you do! This action is extremely simple to field strip (only 5 parts from memory?) & extremely tough if you have a good donor action, even P.O. Ackley couldn't blown the darn things up!
Have to agree with Tinker & Grandveneur, this cartridge is a thumper - on both ends!
Best of luck mate, hopefully you'll be able to post your progress as you go.
Looking forward to the next instalment.
Cheers


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3DogMike
.400 member


Reged: 29/01/15
Posts: 1404
Loc: Western Slope, Colorado USA
Re: 500 Jeffery [Re: tinker]
      #353970 - 03/06/21 01:31 AM

Quote:

Midway has ammunition

https://www.midwayusa.com/500-jeffery/br?cid=20436

It's in stock elsewhere too


The 500 Jeffery is a completely different animal than anything that you've put through any of the rifles you mentioned.
Whole different world.

Go and shoot a real big bore rifle.
Shoot as many as you can before you start in on your stock design.

That's my first bit of advice.



+1

The full power cartridge (I have a .500 AHR, an "evolution" of the .500 Jeffery) is an attention getter on both ends.
- Mike

--------------------
"Here's to killing people you don't like with people you do"

"Will Rogers never met a fighter pilot"
- Anon

“Always carry a flask of whiskey in case of snakebite, and furthermore always carry a small snake."
-- W. C. Fields


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xausa
.400 member


Reged: 07/03/07
Posts: 2037
Loc: Tennessee, USA
Re: 500 Jeffery [Re: 3DogMike]
      #353972 - 03/06/21 04:03 AM

Here's how Lon Paul built my .500 Jeffery for me, using a BRNO 602 action and a CZ 550 stock:

https://hosting.photobucket.com/albums/e...zps247361b4.jpg

https://hosting.photobucket.com/albums/e...zps9cfb8b02.jpg

https://hosting.photobucket.com/albums/e...zpsa0cc4310.jpg


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Ithaca375
.224 member


Reged: 09/08/19
Posts: 12
Loc: Missouri Ozarks
Re: 500 Jeffery [Re: tinker]
      #353977 - 03/06/21 10:25 AM

So I have actually fired a fairly similar cartridge before, a 500 A square back when that was still a thing. The recoil was definitely obnoxious, but still manageable. Looking at the ballistics, I'm guessing the 500 jeffery has similar recoil, from a similar sized rifle (planning for a weight of 12 to 15 lbs., as I'm going to be using for hog hunting from the back of a truck, it doesn't need to be light.) I figure I'll use this mostly for hunting, it probably isn't going to saturday range trips or 3 gun competitions.

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Ithaca375
.224 member


Reged: 09/08/19
Posts: 12
Loc: Missouri Ozarks
Re: 500 Jeffery [Re: 93x64mm]
      #353979 - 03/06/21 10:37 AM

As far as fitting the round in an Arisaka action, you are mostly correct. It will not fit a stock arisaka action. But,it only needs about 1/4" of milling lengthwise to fit a round through the bottom, checked with some borrowed ammo. The fun part will be deciding whether to shorten the ejector, or move the whole assembly backwards. It doesn't need to go far, but it does need to move.
I will also need to open the bolt face, but I don't think that will be a problem.
As to the strength of the action, Ackley's notes were what actually inspired this. I had originally bought the reamer to build another mosin, but saw the tests on the Arisakas and decided to pick up a T99 action for the project instead.


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3DogMike
.400 member


Reged: 29/01/15
Posts: 1404
Loc: Western Slope, Colorado USA
Re: 500 Jeffery [Re: Ithaca375]
      #353980 - 03/06/21 12:11 PM

Hogs......yep, this one outta do the job!
Even with light for calibre bullets like the Barnes originals to up the speed, explosive expansion, and somewhat less recoil.
Yee Haw
- Mike

--------------------
"Here's to killing people you don't like with people you do"

"Will Rogers never met a fighter pilot"
- Anon

“Always carry a flask of whiskey in case of snakebite, and furthermore always carry a small snake."
-- W. C. Fields


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Ithaca375
.224 member


Reged: 09/08/19
Posts: 12
Loc: Missouri Ozarks
Re: 500 Jeffery [Re: 3DogMike]
      #353981 - 03/06/21 01:23 PM

Yep. I was actually planning to handload with CEB's Safari Raptor bullets. I've used their bullets in a handful of other calibers (mostly 375 and 458), and always found good accuracy and wonderful effect on game, although admittedly that last part would likely apply to anything fired from a 500 Jeffery. I've also considered turning my own bullets from C360 brass, which I've used in the past to make very short and light bullets for the 375, just for giggles.

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500Boswell
.400 member


Reged: 21/07/06
Posts: 1274
Loc: Queensland
Re: 500 Jeffery [Re: Ithaca375]
      #353995 - 03/06/21 07:11 PM

I had a plan to build a 500 jeff on a Type 38 about 15 years ago, but never got to it ,building one on a Mark X 98 at the moment. Its been at the gunsmith for 6 Months................

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500Boswell
.400 member


Reged: 21/07/06
Posts: 1274
Loc: Queensland
Re: 500 Jeffery [Re: 500Boswell]
      #353996 - 03/06/21 07:12 PM

What was your horrible ''experience'' with RCC ?

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500Boswell
.400 member


Reged: 21/07/06
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Loc: Queensland
Re: 500 Jeffery [Re: 500Boswell]
      #354013 - 04/06/21 07:32 AM

Tried ordering brass from him through importer evidently he's not answering emails etc

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3DogMike
.400 member


Reged: 29/01/15
Posts: 1404
Loc: Western Slope, Colorado USA
Re: 500 Jeffery [Re: 500Boswell]
      #354018 - 04/06/21 11:07 AM

Quote:

Tried ordering brass from him through importer evidently he's not answering emails etc



Hmmmm…..I have done business twice with them with good results. (Bore rifle brass cases)
Perhaps worth a (back side of the clock for you) phone call to get info straight from the source.

…….
Not that “importers” or “middlemen” can off times be less than helpful?
RCC has treated me well and IMO are good people…..
- Mike

--------------------
"Here's to killing people you don't like with people you do"

"Will Rogers never met a fighter pilot"
- Anon

“Always carry a flask of whiskey in case of snakebite, and furthermore always carry a small snake."
-- W. C. Fields


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500Boswell
.400 member


Reged: 21/07/06
Posts: 1274
Loc: Queensland
Re: 500 Jeffery [Re: 3DogMike]
      #354019 - 04/06/21 11:24 AM

Maybe he's flat out with orders etc

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Ithaca375
.224 member


Reged: 09/08/19
Posts: 12
Loc: Missouri Ozarks
Re: 500 Jeffery [Re: 500Boswell]
      #354020 - 04/06/21 01:04 PM

Hey, that's awesome to see I'm not the only guy that's trying to do this. I had talked to a few local gunsmiths to get advice on the conversion, turns out none of them even knew what the cartridge was. Good to find a place where I can talk to people that don't look at me like I'm crazy.

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Ithaca375
.224 member


Reged: 09/08/19
Posts: 12
Loc: Missouri Ozarks
Re: 500 Jeffery [Re: 500Boswell]
      #354021 - 04/06/21 01:15 PM

Bought some RCC 425 WR brass for a friend's retirement. Loaded with some nice bullets. About a third of them split on the first firing. Not just the neck, like halfway down the case. Wasn't my loads, wasn't the rifle. It's current owner was on his 5th reload per case with cheap australian brass last I checked.
Considering that the RCC ran me 3x what the australian brass did, I was fairly pissed, especially seeing as they were supposed to be a really nice gift for the guy.
With what their 500 Jeffery brass costs, I'm not risking it. I'll wait for norma to come back into stock, or see if my ammo guy can rustle some up.


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Ithaca375
.224 member


Reged: 09/08/19
Posts: 12
Loc: Missouri Ozarks
Re: 500 Jeffery [Re: Ithaca375]
      #354022 - 04/06/21 01:18 PM

Actually, speaking of the brass. If anyone has some brass they'd be willing to part with, feel free to message me.

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93x64mm
.416 member


Reged: 07/12/11
Posts: 3954
Loc: Nth QLD Australia
Re: 500 Jeffery [Re: Ithaca375]
      #354023 - 04/06/21 04:03 PM

Quote:

Bought some RCC 425 WR brass for a friend's retirement. Loaded with some nice bullets. About a third of them split on the first firing. Not just the neck, like halfway down the case. Wasn't my loads, wasn't the rifle. It's current owner was on his 5th reload per case with cheap australian brass last I checked.
Considering that the RCC ran me 3x what the australian brass did, I was fairly pissed, especially seeing as they were supposed to be a really nice gift for the guy.
With what their 500 Jeffery brass costs, I'm not risking it. I'll wait for norma to come back into stock, or see if my ammo guy can rustle some up.




I've never had issues with Norma, RWS, Remington, ADI or Bertram brass for that matter straight up.
Years back I split every 7mm Rem Mag brass from Winchester - like you I wasn't happy!
It can happen, so if in doubt anneal from the start, regardless from where you get you brass from!


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DarylS
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Reged: 10/08/05
Posts: 26413
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Re: 500 Jeffery [Re: 93x64mm]
      #354035 - 05/06/21 01:18 AM

Good advice if used brass, or even old (50yr. old) new brass.

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


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


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Ithaca375
.224 member


Reged: 09/08/19
Posts: 12
Loc: Missouri Ozarks
Re: 500 Jeffery [Re: 93x64mm]
      #354058 - 05/06/21 12:39 PM

Yep. So far, I've had good experiences with all the brand's you've mentioned except ADI, which I've never tried. I probably should have annealed, but with how little these cases get worked, I didn't think it would be necessary for the first firing.
But I'll start doing that, now that I'm shooting more expensive cases.
Thanks for the tip!


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tinker
.416 member


Reged: 12/03/05
Posts: 4835
Loc: Nevada
Re: 500 Jeffery [Re: Ithaca375]
      #354059 - 05/06/21 01:14 PM

Sounds like you're a seasoned big bore pro.

Get the party started and post some photos of your rifle assembly project.
We'll be watching.

--------------------
--Self-Appointed Colonel, DRSS--



"It IS a dangerous game, and so named for a reason, and you can't play from the keyboard. " --Some Old Texan...


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grandveneur
.400 member


Reged: 21/09/08
Posts: 1278
Loc: France / Germany
Re: 500 Jeffery [Re: tinker]
      #354061 - 05/06/21 04:17 PM

https://www.cartridgecollector.net/500-jeffery

For information, but I think it is known that not everything that is called 500 Jeffery is 500 Jeffery.

In reality I don't have a rifle caliber 500 jeffery but caliber 500 Schüler, Romey hybrid 1997. The rifle was built 1998 by Ritterbusch in Germany on an Mauser Magnum system.


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lancaster
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Reged: 06/05/08
Posts: 8664
Loc: There's a lighthouse in the mi...
Re: 500 Jeffery [Re: grandveneur]
      #354069 - 05/06/21 10:12 PM

imho, we talking about very little differences what were once probably production tolerances but than became a standard.

I suspect you 500 Schüler have a chamber accepting german and british made cartridges?

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


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grandveneur
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Reged: 21/09/08
Posts: 1278
Loc: France / Germany
Re: 500 Jeffery [Re: lancaster]
      #354073 - 06/06/21 12:27 AM

That's right, but two cartridges are standardized nowadays according to CIP Homologation; the 500 Jeffery and the 12,7x70 Schüler.

I would be able to load both in my rifle, but if you have a new rifle caliber 500 jeffery you cannot load cartridges 12,7x70 Schüler. Years ago, Kynamco Limited and Norma temporarily no longer made the same cartridges. In the meantime everything seems to be standardized.

I hope that @Ithaca375 has a new reamer.


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