Just got a sale notice in the mail and thought that I would pass it on.
They list a 25% discount for case purchases (25 rounds for 700, 600 & 577 or 50 rounds for everything else).
Examples - .500 Jeffrey $69.50 per box of 5 or $521.25 per case (10 boxes), .600 Nitro $149.50 for box of 5 rounds or $560.63 for 5 boxes, .404 Jeffrey $36.75 for box of 5 rounds or $275.63 per case (10 boxes), .375 2.5" $38.50 per box or $288.75 per case, .350 Rigby mag $38.50 per box or $288.50 per case. There are too many to list but gives you an idea.
Their contact info: phone 303-471-7447, fax 303-471-7445.
I can e-mail the price list in the morning to those interested.
DaveC

You have a PM

Thanks,

Gentlemen

Do not buy the .500 Jeffery Ammo from Kynamco.
The cases are too short and you will get about 25% duds due to this.
The brass is furthermore too thin and you will not be able to reload it well. The bullet will not sit tight due to this.
I have had the "pleasure" of test shooting 150 of these cartridges and they all had the same failure rate regardless of which batch they came from.
H&H in England has also had problems with ammo in the .500 Jeffery calibre. They now offer WR ammo.
All the duds where checked with Zeiss calypso optical measuring machines at my cost. I had to find out if it was the rifle. It was not.

I have in my possession more then 100 cases if some one wants to buy this poor Bertram brass Sh.. for a wildcat project.

The ammo in other calibres might be fine. But if the brass in too thin in one calibre the it might be in all of them.
If it is a rimed or belted calibre the problem with the duds should not be there but the problem with holding the bullet tight enough will always be there if the brass is too thin.

Cheers,

André

André

Is all that Kynamco ammo made with Bertram brass??

Mike

Gentlemen

I know that Kynamco have used various sources for brass depending on caliber. Norma made a few like 470 nitro.

André, is your rifle living on Horneber brass?

Cheers
/ JOHAN

Johan

Yes the rifle is feeding on brass from Dieter Horneber and it likes it

Mike375

I do not know.
I do know that D Horneber has an "exclusive agrement with Wolfgang Romey and will not sell brass to David from Kynamco. Kynamco would very much like to get the brass from D Horneber, but I guess that the Germans stick together.

Cheers,

André

Good Lord those Kynoch prices are high. Westley Richards charges less without a sale, and their brass is top quality (Horneber).

Jeffery, what was the date of manufacture on the ammo you tested?
I posted this since I had purchased 5 boxes of .500 Jeffrey from them in 2001. The boxes were dated 1997. The 10 that I fired chambered fine, bullets were not loose. However, all 10 were sticky to extract. I thought that there was an ammo problem, however, my reloads with Bertram & Horneber brass were also sticky at 110 gr of RE-15 and 535 gr woodleighs.
I currently use Horneber brass with 100 gr of RE-15 with Barnes 570 gr XLC's or 105 gr of RE-15 with woodleigh 535's. No problems at these levels, so I think I just have a tight rifle. I did not see pressure signs on the fired brass.
DaveC

I also had sticky extraction with all 150 rounds from Kynamco. I got them in 2003.
The brass is too soft and thin that is why your extraction is sticky.
I lopad my Horneber with 120 grn of VVN 140 and light it with a CCI 250 primer. The bullets are woodleigh 535, and homemade 500 grn and 600 grn copper bullets.

Kymanco loaded the ammo too hot and it is not worth paying for. Sticky exraction is not something you want when facing Mbogo
Ammo of that quality is only good on the range and even there it makes you look like a fool with a expensive rifle trust me I have been there and done that

The bullets are not loose when you get the ammo from Kynamco but due to the thin brass a normal die for the .500 Jeffery will not make the inside diameter the right size.
With big bore calibres you want the bullet ti sit sitht and a death crimp is also nice to have.

I now reload my own, Horneber brass, and I never have any problems not even with hot loads.

Cheers,

André

Ja Jægers 500 graines is right

http://www.westleyrichards.com/gun/ammo_metal.html
Cheers,

André

What is a 500 Rafiki...a 700 Nitro necked to 50?

Has anyone tried the Horneber brass for hardness. For example, using Horneber brass can the 500 Jeffery be loaded to exceed the power of the 500 A Square using Norma 460 brass. I think the 500 Jeffery is about 10% bigger in case capacity than the 500 A2

Mike

I just placed an order from Westley Richards for 500 NE. They informed me they are out of all metallic cartridges. Now I don't know if they meant just 500 NE or ALL calibers.

Please listen what André said about Kynamco ammo. It happened the same with my .500 Jeffery.

Gentlemen

This is where to buy the best brass in the world for old big bores like the .500 Jeffery.
http://www.huelsen-horneber.de/frame_engl.html
Cheers,

André

quote:

---

Originally posted by Mike375:
What is a 500 Rafiki...a 700 Nitro necked to 50?

Has anyone tried the Horneber brass for hardness. For example, using Horneber brass can the 500 Jeffery be loaded to exceed the power of the 500 A Square using Norma 460 brass. I think the 500 Jeffery is about 10% bigger in case capacity than the 500 A2

Mike

---

Mike,
Water capacities, long ago establised here, and recited by rote memory now:

500 A2 ........ 150 grains
500 Jeffery ... 160 grains
505 Gibbs ..... 180 grains

That is only 6.7% difference between the 500 A2 and the 500 Jeffery.

Seat the 500 A2 out to 3.75" with a GSC 570 grain FN (crimp) or a Barnes XLC 570 grainer (no crimp), and it will be very close to the .500 Jeffery in case capacity.

The Rigby sized box of most 500 A2 rifles, and the standard 500 A2 throat (0.4000" freebore and 1 degree leade) easily allows this.

Clymer offers two 500 Jeffery reamers.
One has only 0.1000" freebore with 1.5 degree leade.
The other has 0.4000" freebore with 2.5 degree leade.

What was the original 500 Jeffery throat? Any freebore? ... Let me go look for that monograph I got from Alf ... looks like a leade length of only 0.115" with no freebore!


Is that the original .500 Jeffery throat?

Hey Paul H, JefferyDenmark, Alf, Jeffeoso, DaveC, Pedro, anybody with a .500 Jeffery: what throat does it have and who made the reamer?

quote:

---

Originally posted by JefferyDenmark:
Gentlemen

This is where to buy the best brass in the world for old big bores like the .500 Jeffery.
http://www.huelsen-horneber.de/frame_engl.html
Cheers,

André

---

Thanks for That! That is a new site for me to mark. Great!

So what reamer and throat was your 500 Jeffery done with, Andre'?

Interesting to note that the 500 Jeffery and 338 Lapua are the same length, 70 mm or 2.720"?

Rip

My rifle is a Heym Express and the reamer used was from Triebel, I also have a die set from Triebel. These tools are CIP standard measuremants for the.500 Jeffery.

The Heym Express magazine box will easily take a 92 mm cartridge. That is the length of my home made 600 grn Cup pint solid in pure copper.
I am not sure about the throat

Ja RIP but the .338 LM is based on the design of the .416 Rigby and the .500 Jefery on the..?? Jeffery or Schüler
The .500 Jeffery is fatter then the .338 LM

The .500 Jeffery has been necked down to .338 by SABI. It is known as the .338 Voschol.
http://www.sabirifles.co.za/calibers.htm

Cheers,

André

92 mm or 3.622" is the length of a 500 A2 with Barnes 570 grain XLC seated and crimped on the canelure.

Just a mnemonic for case length, the .500 Jeffery is fatter than the Lapua/Rigby, but the same length as the .338 Lapua Magnum, ja!

How about seating a flat based bullet backwards in a case and see how much of the protruding base you can close the bolt on with a round chambered like that. Seat it incrementally deeper until you can close the bolt. You can then get some idea if you have any freebore.

The freebore must be long I have no problems chambering these long Cup points.

Cheers,

André

Andre',
Are those grooved, with full caliber diameter nose up to the ogive? About how much full diameter bullet length do you have ahead of the case?

Go ahead and turn a flat base around backwards and see how much full diameter bullet you can close the bolt on, if you ever get a few minutes to tinker with this, please.

Rip

The bullets are 12,9 where the grooves are and 12,7=caliber in the front. The front is not sub calibre. I might try this next time to reduce presure. But then again recoil was not bad so why fix it if is aint broken.





Cheers,

André

quote:

---

Originally posted by Mike375:

Has anyone tried the Horneber brass for hardness.

---

Yeah, I bit on one. It was harder than a beer can. Then I bit on a Bertram case and it was like a marshmallow.

[QUOTE]Originally posted by JefferyDenmark:
Rip

The bullets are 12,9 where the grooves are and 12,7=caliber in the front. The front is not sub calibre. I might try this next time to reduce presure. But then again recoil was not bad so why fix it if is aint broken.

Andre'
That is a beautiful bullet, especially love the death-crimp grooves.

A 12.7mm (0.500") nose diameter must be a bore rider or semi-borerider that barely rides the lands?

A 12.9 mm full bearing shank is still only 0.508".

The original jacketed .500 Jeffery or 12.7x70 mm Schuler had a bullet bearing surface diameter of 0.5095"min to 0.5105" max.

It looks like you have some freebore, not just a 0.115" leade. Or is your barrel rifling just a little tighter than the .500" land and 0.510" groove that is most common?

I really don't know for sure. I don't even want to start another discussion of .500 Jeffery vs. 12.7x70 Schuler shoulder variations and ammo interchangeability.

Thanks for posting the picks.
************************************************
And anybody interested, it appears that North Fork might be making some dual diameter 50 cal bullets intended for the 500 NE and 500 Jeffery.
Get your orders in. I assume they will be CP and FP solids.
************************************************

Maybe a North Fork 50 caliber SP soft too.

Hey RIP, who's brass were you using when you 150gr of water in a 500 A^2 case? The Norma (Weatherby) cases I have measured were in the 137 to 140 range. By the way, the Norma cases are pretty thin in the web and sides down there so I cannot image getting much more capacity with a "thinner" case (cause it would be transparent).

Also, 160gr of water in a 500 Jeffery is a tad optimistic, but remotely possible with THIN brass.

ASS_CLOWN

I had the same problem as André with .500Jeffery Kinoch ammo.

The failure is about 25%

What a lovely rifle

The quality control at Kynamco is real poor

They are destroying a good name like Kynoch
Shame on them

Cheers,

André

Aye, Pedro, that is sweet.
Is there anyone who knows what kind of throat they have in their 500 Jeffery? Freebore? Leade?