Other than the Magnum Mauser, what other bolt actions would be suitable to build a 585 Nyati on?

Tony

Tony, ask Wayne Jacobsen at AHR. He's built several big bores around that size, probably on Granite Mountain actions. Not sure about a CZ 550.

On all of the Nyati's I've built (that would be a total of one) I used the CZ 550. The belted magnum action (375 H&H, 458 Lott, etc.) will work but the 416 Rigby action is better and less work to get to function. That's all I know.

Wayne

run away, have a nap, drink a pint -- just never do the nyati -

can build on cz mag, and even an enfield -- doom, despair, and agony

When Ross Seyfried designed it, weren't the first couple built on a standard M98, and possibly later on a Winchester M70?

I remember reading that the Pattern 14 Enfield was a good action for a budget Nyati or Gibbs build.

I bought some of the Remington made, Pattern 14 drill rifles several years ago. I hoped to build a Nyati and a 505 Gibbs, or two.

But then the Nyati fell out of favor, so I'm left to wondering what is a suitable 585 for an Enfield action. I think Ed Hubbel designed one, but I don't know anyone that built one.

The 600 Overkill is pretty close.

quote:

Originally posted by Dan Mizer:
I remember reading that the Pattern 14 Enfield was a good action for a budget Nyati or Gibbs build.

I bought some of the Remington made, Pattern 14 drill rifles several years ago. I hoped to build a Nyati and a 505 Gibbs, or two.

But then the Nyati fell out of favor, so I'm left to wondering what is a suitable 585 for an Enfield action. I think Ed Hubbel designed one, but I don't know anyone that built one.

Boomie designed one, the 577 BME, which, in turn, is dimensionally identical to Ed's later round. How do I know? I got the first ever (modern) shipment of straight 505 gibbs cases, stuck a .585 bullet in it, and called Boomie. We talked that there'd need to be a belt swaged on - which I don't have any patience for.

If you DO build an Nyati, get with Dave Manson, and have him cut your chamber and reloading die reamers - Ross screwed up the neck junction, and his original design doesn't actually work, as published

I have a 585 Nyati built by Frank Wells on a CRF M70 action (Post 64). I am very happy with it. It functions fine and I have not had any problems with it. It can be loaded to any level a person could ever want.

How about the Savage 220 20 gauge slug-gun action?

Several years ago, there was a member here that said the Savage 220 was an oversized model 110 rifle action, and so it could be used to make an affordable 600 or 577 nitro, with a rebarrel.

I don't remember who the member was - RNS, or Robgunbuilder, maybe???

I was fascinated by the concept and was hoping to hear about somebody actually building one. Never read anymore about it, though.

If I had a lot of spare time and money, I would try to look into it. Not sure were to start, though. Pacnor barrels, maybe?

quote:

Originally posted by Dan Mizer:
How about the Savage 220 20 gauge slug-gun action?

Yeah, I already thought of that, but there is really no way to know if it will handle it without running it up and see if the bolt breaks. I'm not sure I'm willing to be the first guy to try that with the Nyati.

However, I was successful in turning two semi-automatic .410 shotguns into 444 Marlin and 375 JDJ rifles. See Video.

Tony Rumore
Tromix

https://www.youtube.com/watch?v=cHLDu0aUHXY

Montana Rifleman Professional Hunter or a BBK-02 which occasionally show out on the auction sites. The BBK is really just sort of a CZ-550 magnum.

the bbk/olympic actions, by todays standards, are trash. the 550 mag action is 1000% better fit, function, and finish. Les was a good guy, but his actions look like drunken blacksmithing

Les had the BBK's made in Korea. Possibly the North by the looks of the raw action. I've seen many turned into nice rifles though.

Stick with the CZ 550.

quote:

Originally posted by jeffeosso:
run away, have a nap, drink a pint -- just never do the nyati -

can build on cz mag, and even an enfield -- doom, despair, and agony

Let me guess- build a 358 Win of 7x64 instead!!

quote:

Originally posted by ColoradoMatt:

quote:

Originally posted by jeffeosso:
run away, have a nap, drink a pint -- just never do the nyati -

can build on cz mag, and even an enfield -- doom, despair, and agony

Let me guess- build a 358 Win of 7x64 instead!!

in a medium thread, the only way to confuse me more would be to have the 308 in there, and I could only build two!

the 600ok, any of the 550s, frankly, my 500AccRel or any number of neato wildcats work better - the nyati as ross drew it, has an interference flaw in the shoulder/neck junction, which has to be fixed -- - and i don't like bertram brass quality in the past -

For those who may know; as the Ruger #1 thread walls would be too thin for the pressure other than the Falling Block Works "L" or the Hagn are there any single shot actions suitable for the .640 or .688 rim?

My 585 was the second one finished when Ross Seyfried was having his built. It was built on a standard 98 action and featured in the magazine article. Never once has an issue with feeding, shot it a decent amount and let it go for other big bores.

My 3" version circa year 2000 was done on one of the first CZ550 out. I went looking for a new Brno602 initially but they had been discontinued. I went with a rebated rim( 416 rigby rim) as there were early concerns there may not be enough metal left on the boltface. These concerns were unfounded as over the years most folks stuck with the full sized rim no probs.

quote:

Originally posted by viperidae:
For those who may know; as the Ruger #1 thread walls would be too thin for the pressure other than the Falling Block Works "L" or the Hagn are there any single shot actions suitable for the .640 or .688 rim?

Just to be clear, the "rim" isn't an important dimension, within reason, it's casehead thickness

Ross build on a BRNO 602
Had to love it.
Dave Manson retired……but still loves guns.
His shop is still open and making incredible reamers

I have a Montana PH around here someplace…….and can’t think what to build on it.