mickey
(.416 member)
28/05/12 04:20 AM
.585 Nyati

A friend just picked up this .585 Nyati from Ralf Martini in Cranbrook.

Beautiful craftsmanship. Rifle sites are spot on at 50 and 100 yards. 750 gr/2500. Recoil is not harsh but inevitable, much like my 8 Bore.

Weight is 13.5 pounds with two Mercury recoil reducers in stock. Two recoil lugs, island rear and ramp front are all machined from barrel stock.

The drawback I see is time to get back on target with a new round loaded before you get run over.

Will post some more pictures later.

Sorry, I moved the files after I posted them.

Should add it is a Granite Mountain Arms Action and is smooth as butter and loads as slick as snot.







mickey
(.416 member)
28/05/12 04:54 AM
Re: ..585 Nyati more pictures









Ben
(.400 member)
28/05/12 07:35 AM
Re:.585 Nyati more pictures

What I see so far looks cool! Have you got any of the cartridge and the whole profile? Heaps of fun...

bakposten
(.300 member)
28/05/12 07:58 AM
Re: .585 Nyati more pictures

Nice gun, with out the muzzle break I`ll bet you will feel "some" recoil. I`ve tested the 577 t-rex, but I did not buy it..

tinker
(.416 member)
28/05/12 11:39 AM
Re: ..585 Nyati more pictures

Shazam!









Cheers
Tinker


mickey
(.416 member)
28/05/12 04:57 PM
Re: .585 Nyati more pictures

Quote:

What I see so far looks cool! Have you got any of the cartridge and the whole profile? Heaps of fun...




I believe it is a 500 Jeffery necked up to .584. 500 grains has some 900 grain bullets for it that would be interesting. The rifle will probably be loaded to 1900fps with 750 grain bullets. Same as the .577 2 3/4 loading. That is plenty for anything in Africa for sure.

POI
I shot it once only without the muzzle break. The man who owns it only had two rounds left after sighting in. It is really not as bad as one would assume. A very hard push but nothing like a 460 WB. Much more like a 505 Gibbs.


Ben
(.400 member)
28/05/12 06:10 PM
Re: .585 Nyati more pictures

Awesome! Thanks for the additional photos.

CommandCar
(.333 member)
30/05/12 05:57 AM
Re: .585 Nyati more pictures

Quote:

Quote:

What I see so far looks cool! Have you got any of the cartridge and the whole profile? Heaps of fun...




I believe it is a 500 Jeffery necked up to .584. 500 grains has some 900 grain bullets for it that would be interesting. The rifle will probably be loaded to 1900fps with 750 grain bullets. Same as the .577 2 3/4 loading. That is plenty for anything in Africa for sure.




I see this thread refers to a .577 Nyati. I had not heard of this cartridge, but looking at the photos I see the barrel is inlayed in gold .585 Nyati. I have heard of the latter.

I believe the .585 Nyati is based upon the .600 Nitro case with the rim turned off, recut to rimless form, necked down to accept slugs for the .577 and maybe shortened. It was created by Ross Seyfried if I remember correctly.


Igorrock
(.400 member)
30/05/12 08:47 AM
Re:.585 Nyati more pictures

Quote:

The .585 Nyati was developed by Ross Seyfried. He was motivated by the desire to create a rifle with tremendous stopping power at a fraction of the cost of expensive double guns such as the various Nitro Express rounds.

The rims were turned from .577 Nitro brass and the case blown out straight to allow formation of enough of a shoulder for headspace purposes. Brass formed by this method, during the developmental phase, had a relatively weak case head because the parent .577 Nitro case was designed for a double rifle which supports the case head all the way to the rim. In a bolt action rifle, a portion of the case head is unsupported and requires more strength in that area.




mickey
(.416 member)
30/05/12 10:42 AM
Re:.585 Nyati more pictures

My mistake in the title. It is a 585 Nyati.

Ross recommended against the rifle, citing feeding problems in his and excessive recoil. (it takes a long time to get recycled and back on target. 3-4 seconds I would guess.)

The brass is from Harold Wolf and I believe Bertram also makes brass.

500 grains had one once also so he could answer questions about the cartridge.


DarylS
(.700 member)
30/05/12 10:43 AM
Re: .585 Nyati more pictures

Igorrock - that sounds right as I remember the article - even picture Ross shooting it.

Good-on-ya, Mick - not for this old, broken man to shoot, that's for sure. I'm starting to cringe at 270gr. running 2,700fps. You couldn't get me to shoot a .505 either.

I was talking to a fellow at our local gun show the first week of May, who was selling barrels, actions and barreled actions in that calibre. I assume he got them from Ralf.


Deutsche_Vortrekker
(.333 member)
30/05/12 06:03 PM
Re: .585 Nyati more pictures

Quote:

Quote:

The .585 Nyati was developed by Ross Seyfried. He was motivated by the desire to create a rifle with tremendous stopping power at a fraction of the cost of expensive double guns such as the various Nitro Express rounds.

The rims were turned from .577 Nitro brass and the case blown out straight to allow formation of enough of a shoulder for headspace purposes. Brass formed by this method, during the developmental phase, had a relatively weak case head because the parent .577 Nitro case was designed for a double rifle which supports the case head all the way to the rim. In a bolt action rifle, a portion of the case head is unsupported and requires more strength in that area.





I have Seyfrieds original article around here somewhere.I dont think the original rifle had any special recoil reducers other than a pad.Wow in this case it would seem that you were getting almost as much as you were giving out.

NitroXAdministrator
(.700 member)
30/05/12 07:43 PM
Re: .585 Nyati more pictures

Some photos of the cartridges would be cool too.

NitroXAdministrator
(.700 member)
30/05/12 07:48 PM
Re: .585 Nyati more pictures

I may have some Bertram brass to photograph if I am lucky.

Sarg
(.400 member)
30/05/12 08:19 PM
Re: .585 Nyati more pictures

Here is a photo of the cartridge shown with a 30-30 Win



I love the way those sights grow out of the barrel, very Cool !


Deutsche_Vortrekker
(.333 member)
30/05/12 08:32 PM
Re: .585 Nyati more pictures

I believe Seyfried originally put this in a standard Mauser action....with massive siderail work obviously

mickey
(.416 member)
31/05/12 02:50 AM
Re: .585 Nyati more pictures

Quote:

I love the way those sights grow out of the barrel, very Cool !




Here is a link to Ralf's webpage.

http://www.martiniandhagngunmakers.com


500grains
(.416 member)
17/07/12 12:26 AM
Re: .585 Nyati more pictures

.585 loading data here:

http://forums.nitroexpress.com/showflat.php?Cat=0&Number=78060&an=0&page=2

.585 cartridge photo here:

http://www.huntnetwork.net/modules/wfsec...585%20Nyati.pdf


Coloradoyaler
(.224 member)
13/08/12 12:43 AM
Re: .585 Nyati more pictures



My entry into the megabore. A 585 Nyati 2.8 inch as Ross designed. Built by SSK 17 years ago on a 460wby action single stacked with an extended magazine. Hold two down and one in the chamber. It will feed all bullets to include the flat nose barnes and the CEB non cons. Oh, it also shoots 1 1/2" three shot groups off the bench!


Tom30887
(.275 member)
13/08/12 08:43 PM
Re: .585 Nyati more pictures

Very nice guys, I like both.

Whats the recoil figures with and without the break? I imagine even with the break you would be looking at 100+ft/lbs


500grains
(.416 member)
14/08/12 03:27 AM
Re: .585 Nyati more pictures

Article about .585 in use in the field:

http://www.huntnetwork.net/modules/wfsec...585%20Nyati.pdf

I used to take Ibuprofen before shooting my .585.


Coloradoyaler
(.224 member)
14/08/12 07:08 AM
Re: .585 Nyati more pictures

500grians

I have read your article and have enjoyed it! Do you still have and use your 585?

Regards
Mark


500grains
(.416 member)
14/08/12 10:58 AM
Re: .585 Nyati more pictures

I sold that monster. A 13 pound rifle is more than I can handle on a stalk. And follow up shots are slow with that much recoil. I also sold my .600 NE. I spent the money on more elephants.

Omnivorous_Bob
(.333 member)
15/08/12 10:55 AM
Re: .585 Nyati more pictures

CO, that's a great looking thumper!!! Would love to see some more photos if you get the chance. Do you have any hunting plans for it?

Bob


Coloradoyaler
(.224 member)
16/08/12 12:52 AM
Re: .585 Nyati more pictures

Thanks Bob!

I just returned from Alaska. My wife and I did a 100 mile self guided river float trip on the Kanektok river. So our vaction time is used up for this year. However, I have plans to harvest a bison this fall with to fill the freezer. The possibly Africa next year.



bigdog
(.375 member)
15/12/12 11:14 AM
Re: .585 Nyati more pictures

good luck on a hunt. Looks like a fine rifle to me.

buckbrush
(.300 member)
14/09/13 03:48 AM
Re: .585 Nyati more pictures

A Martini rifle with a fiberglass stock and a muzzle break? Sacrilege!


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