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Shooting & Reloading - Mausers, Big Bores and others >> Big Bore Rifles

Pages: 1

Planetmobius
.224 member

Reged: 08/01/17
Posts: 1
Loc: Wisconsin

550 Magnum
#296228 - 04/03/17 12:37 PM

Greeting guys,

New member and first post here. Was wondering what any of you knew about the 550 Magnum. I stumbled on one of the rifles on Gun Broker. It was based on the CZ550 receiver. Since then I have been trying to research it, since it looked like something I would be capable of building. Unfortunately, I find a lot of old posts but nothing very recent. Dis this rifle fade away or is it still out there being made? I'm not even sure if there is a maker. The original website lists sources for barrels, dies, brass and such. Some of these sites are no longer up. Not a lot of information out there. Anyone have any experience with it?

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Wanabebwana
.300 member

Reged: 11/01/13
Posts: 221
Loc: Canada

Re: 550 Magnum [Re: Planetmobius]
#296390 - 06/03/17 03:54 PM

The .550mag in a CZ 550 mag. how appropriate.
The largest caliber you can put in a strait walled 2.9" Weatherby case is a .550.
Just like a .458 (or .470) in a .375 magnum based case. No visible shoulder and head-spaces on belt.
The .550 Express is the little sister with a 2.5" or 2.65" case. Will fit in standard Mauser 98.
http://www.550magnum.com/

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Samm__550
.224 member

Reged: 13/12/17
Posts: 1
Loc: Indiana

Re: 550 Magnum [Re: Wanabebwana]
#309255 - 21/12/17 05:48 AM

Hi Everyone;

I am a new member here but ran across this post and wanted to add my 2 cents worth.
I have a 550 mag that I built and it is really something to shoot.
I used Montana Rifle Co. Mag action with a Pac-nor barrel.
If anyone is interested in any more info please PM or email me.
I am willing to discuss all I have done with this caliber.

Samm_550

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Claydog
.375 member

Reged: 17/08/12
Posts: 934
Loc: Katherine, Northern Territory ...

Re: 550 Magnum [Re: Samm__550]
#309265 - 21/12/17 09:34 AM

Have to admit to never even hearing of this cartridge before. Always interested to learn more if someone has any information.

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DarylS
.700 member

Reged: 10/08/05
Posts: 26479
Loc: Beautiful British Columbia, Ca...

Re: 550 Magnum [Re: Claydog]
#309301 - 22/12/17 06:32 AM

Seems to me, I made up a .550 Mag. for a friend, a wildcat

ctg. collector in Spain - & 2 different ctgs. at that, one,

iirc, was necked & may have been on a .404 Jeffery or .577

case.

My memory of that bunch of wildcat cases is not good. I had

never heard of several of them before, but with pictures,

was able to make them.

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

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

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DarylS
.700 member

Reged: 10/08/05
Posts: 26479
Loc: Beautiful British Columbia, Ca...

Re: 550 Magnum [Re: Wanabebwana]
#309302 - 22/12/17 06:35 AM

Quote:

The .550mag in a CZ 550 mag. how appropriate.
The largest caliber you can put in a strait walled 2.9" Weatherby case is a .550.
Just like a .458 (or .470) in a .375 magnum based case. No visible shoulder and head-spaces on belt.
The .550 Express is the little sister with a 2.5" or 2.65" case. Will fit in standard Mauser 98.
http://www.550magnum.com/

tried the address - got this.

Hmm. We’re having trouble finding that site.

We can’t connect to the server at www.550magnum.com.
If that address is correct, here are three other things you can try:

Try again later.
Check your network connection.
If you are connected but behind a firewall, check that Firefox has permission to access the Web.

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

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

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Ash
.400 member

Reged: 10/05/11
Posts: 1652
Loc: Australia

Re: 550 Magnum [Re: DarylS]
#309503 - 26/12/17 10:19 PM

.550 is a .460 weatherby straightened out. Sorta like a .458 win mag but on steroids.

--------------------
.

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