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

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zephyr
.275 member


Reged: 20/09/05
Posts: 51
505 Gibbs
      #366065 - 29/05/22 08:18 PM

Some where along the line I fell in love with the 505 Gibbs. The clean lines of an un-scoped big bore rifle and a bore diameter that will quicken your pulse and swallow your dreams.
After my last Safari five years ago I decided to put one together for my next hunt this August a Buffalo and Tuskless affair. Good Friend and local gunsmith agreed to take on the project.
Here are a few pictures of the journey

Wood...Bastogne
Green Mountain Arms Action
Krieger Barrel 24"
Gun weight 11.0 lbs
LOP 14.5"s
Sights filed in for 525gr CEB Solid 2300fps
`
The begining
[image][/image]

First cuts
[image][/image]

[image][/image]

Sorry I seem unable to take successful full length pictures
[image][/image]
https://i.imgur.com/20Lq5oF.jpg
[image][/image]


Edited to remove the image code from a oversized image.

Edited by NitroX (30/05/22 04:50 PM)


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zephyr
.275 member


Reged: 20/09/05
Posts: 51
Re: 505 Gibbs *DELETED* [Re: zephyr]
      #366067 - 29/05/22 10:05 PM

Post deleted by zephyr

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NitroXAdministrator
.700 member


Reged: 25/12/02
Posts: 35787
Loc: Barossa Valley, South Australi...
Re: 505 Gibbs [Re: zephyr]
      #366068 - 29/05/22 10:30 PM

Quote:

Some where along the line I fell in love with the 505 Gibbs. The clean lines of an un-scoped big bore rifle and a bore diameter that will quicken your pulse and swallow your dreams.
After my last Safari five years ago I decided to put one together for my next hunt this August a Buffalo and Tuskless affair. Good Friend and local gunsmith agreed to take on the project.
Here are a few pictures of the journey

Wood...Bastogne
Green Mountain Arms Action
Krieger Barrel 24"
Gun weight 11.0 lbs
LOP 14.5"s
Sights filed in for 525gr CEB Solid 2300fps
`
The begining


First cuts




Sorry I seem unable to take successful full length pictures



Way way too big.
https://i.imgur.com/20Lq5oF.jpg







Edited by NitroX (29/05/22 10:37 PM)


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3DogMike
.400 member


Reged: 29/01/15
Posts: 1117
Loc: Western Slope, Colorado USA
Re: 505 Gibbs [Re: zephyr]
      #366072 - 30/05/22 12:40 AM

Quote:

Can't figure out why my images are not coming through




Used to have the same problem.
Awhile back I found a workaround for the format of IMGUR's links:
You just need to edit out the "?1" on the last of the string of the address.

- Mike



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NitroXAdministrator
.700 member


Reged: 25/12/02
Posts: 35787
Loc: Barossa Valley, South Australi...
Re: 505 Gibbs [Re: 3DogMike]
      #366073 - 30/05/22 12:47 AM

No ubb uses image small case. Not img. The address would always finish in jpg, gif, png. Lower or upper case as the original file is. No jpeg as for apple graphics.

Width of image is ideally 1024 pixels or less. To fit in the page. Larger will require scrolling left or right. A lot larger? Use just the address without image code. Readers will have to open the graphic to view.

--------------------
John aka NitroX

...
Govt get out of our lives NOW!
"I love the smell of cordite in the morning."
"A Sharp spear needs no polish"


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zephyr
.275 member


Reged: 20/09/05
Posts: 51
Re: 505 Gibbs [Re: NitroX]
      #366074 - 30/05/22 01:15 AM

thanks for the help

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zephyr
.275 member


Reged: 20/09/05
Posts: 51
Re: 505 Gibbs [Re: zephyr]
      #366079 - 30/05/22 03:23 AM

test

[img]http://i.imgur.com/q6kSncE.jpg?1[/img]
[img]http://i.imgur.com/20Lq5oF.jpg[/img]
[img]http://i.imgur.com/LKPvYNh.jpg?2[/img]


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Daryl_S
.600 member


Reged: 10/08/05
Posts: 24504
Loc: Beautiful British Columbia, Ca...
Re: 505 Gibbs [Re: zephyr]
      #366084 - 30/05/22 08:30 AM

Nicely filled finish.

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


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


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93x64mm
.416 member


Reged: 07/12/11
Posts: 3297
Loc: Nth QLD Australia
Re: 505 Gibbs [Re: Daryl_S]
      #366097 - 31/05/22 06:37 AM

That is one serious piece of hardware - & good looking too!
Looks more than ready to take on any cape buffalo, hope to see some photos of your hunt when you finally get there mate.
How many in the magazine - 3 shots?


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Ripp
.577 member


Reged: 19/02/07
Posts: 15931
Loc: Montana, USA
Re: 505 Gibbs [Re: zephyr]
      #366099 - 31/05/22 08:58 AM

Very nice looking rifle..congrats...

While I don't have a .505 Gibbs, have always been fascinated by that caliber as well..

Have a great hunt and post some pics please

Buff and Tuskless... Zimbabwe??

--------------------
ALL MEN DIE, BUT FEW MEN TRULY LIVE..


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Ripp
.577 member


Reged: 19/02/07
Posts: 15931
Loc: Montana, USA
Re: 505 Gibbs [Re: Ripp]
      #366102 - 31/05/22 09:20 AM

While reading on the net found this article.. thought I would share and see who has the answer..

.505 Gibbs Rifle Brass 'H H' Headstamp: Maker and Quality Info Sought

This .505 Gibbs brass, used in belt-felt .50 caliber rifle ammunition, is headstamped "H H." Do any Guns & Ammo readers know the origin of the stamp?

https://www.gunsandammo.com/editorial/505-gibbs-brass-h-h-headstamp/458742

--------------------
ALL MEN DIE, BUT FEW MEN TRULY LIVE..


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Daryl_S
.600 member


Reged: 10/08/05
Posts: 24504
Loc: Beautiful British Columbia, Ca...
Re: 505 Gibbs [Re: Ripp]
      #366107 - 31/05/22 09:34 AM

What the hell does this mean:

"This .505 Gibbs brass, used in belt-felt .50 caliber rifle ammunition"

What 5.5 Gibbs is loaded for a belt-fed .50 cal rifle?
What is a belt fed .50 cal. rifle?

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


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


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zephyr
.275 member


Reged: 20/09/05
Posts: 51
Re: 505 Gibbs [Re: Ripp]
      #366108 - 31/05/22 09:34 AM

The Buff and Tuskless hunt will be in Zimbabwe in the Save

The Rifle holds 3 down 1 up


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Daryl_S
.600 member


Reged: 10/08/05
Posts: 24504
Loc: Beautiful British Columbia, Ca...
Re: 505 Gibbs [Re: zephyr]
      #366109 - 31/05/22 09:35 AM

Quote:

The Buff and Tuskless hunt will be in Zimbabwe in the Save

The Rifle holds 3 down 1 up




Where does the belt fit?

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


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


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NitroXAdministrator
.700 member


Reged: 25/12/02
Posts: 35787
Loc: Barossa Valley, South Australi...
Re: 505 Gibbs [Re: Daryl_S]
      #366124 - 31/05/22 06:57 PM

Quote:

What the hell does this mean:

"This .505 Gibbs brass, used in belt-felt .50 caliber rifle ammunition"

What 5.5 Gibbs is loaded for a belt-fed .50 cal rifle?
What is a belt fed .50 cal. rifle?




Ha ha, belt fed .505 Gibbs rifle!

I'll have to swap my 50 round drum magazine fed .505 Gibbs rifle for one of those nifty belt fed Gibbs.

Someone writing is having Rambo fantasies of man-deur!

--------------------
John aka NitroX

...
Govt get out of our lives NOW!
"I love the smell of cordite in the morning."
"A Sharp spear needs no polish"


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kuduae
.400 member


Reged: 13/01/10
Posts: 1586
Loc: middle of Germany
Re: 505 Gibbs [Re: NitroX]
      #366125 - 31/05/22 07:11 PM

HH stands for "Huelsen - Horneber" = Horneber cases, of course. Made by Dieter Horneber, Erlanger Str. 259, Fürth, Bavaria.

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Waidmannsheil
.400 member


Reged: 19/04/13
Posts: 2167
Loc: Melbourne Australia
Re: 505 Gibbs [Re: zephyr]
      #366126 - 31/05/22 07:19 PM

Certainly a great cartridge. I have always been fascinated by it, so much so I bought a CZ550 chambered for it. Un-shootable to start with as the stock was totally wrong but once the stock was completely reshaped it is a beauty to shoot. Stout recoil for sure but easily handled. Great ballistics and very flat shooting especially considering the size of the projectile. I hope to use it on Buffalo later this year if all goes according to plan.

Your rifle looks great and uses what is arguably the best action for that cartridge. The barrel profile is quite close to the original and looks good as does the stock. Well done.


Matt.

--------------------
There is nothing wrong with vegetarian food, so long as there is meat with it.


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Daryl_S
.600 member


Reged: 10/08/05
Posts: 24504
Loc: Beautiful British Columbia, Ca...
Re: 505 Gibbs [Re: kuduae]
      #366150 - 01/06/22 02:25 AM

Quote:

HH stands for "Huelsen - Horneber" = Horneber cases, of course. Made by Dieter Horneber, Erlanger Str. 259, Fürth, Bavaria.




Oh, of course, for the belt-fed .505 Gibbs.

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


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


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zephyr
.275 member


Reged: 20/09/05
Posts: 51
Re: 505 Gibbs [Re: Waidmannsheil]
      #366344 - 05/06/22 08:41 AM

Great ballistics and very flat shooting especially considering the size of the projectile. I hope to use it on Buffalo later this year if all goes according to plan.

Matt.



I was quite surprised at just how flat shooting the 505 was using the 525gr bullet when determining what distance to file in my sights. With a 525gr CEB solid at 2300fps I chose to file the Rear Sight in at 30yrds. this is where the bullet "First" crosses Line of Sight. The bullet then stays within .50" of Line of Sight and crosses again on the way down a 90yrds and falling below the projectile width at 110yrds and 3.5"s low at 150.
What more can you ask for


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chuck375
.333 member


Reged: 13/10/07
Posts: 413
Loc: Colorado Springs CO
Re: 505 Gibbs [Re: zephyr]
      #366871 - 19/06/22 08:46 AM

Yes point blank out to 200 yards, the same for my 500 Jeffery shooting 570g TSX's at 2300 fps. For elk / deer at 300 yards hold on the top of the back right behind the shoulder

--------------------
"There's a saying in prize fighting: Everyone's got a plan until they get hit"

Michael Douglas "The Ghost And The Darkness"


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NitroXAdministrator
.700 member


Reged: 25/12/02
Posts: 35787
Loc: Barossa Valley, South Australi...
Re: 505 Gibbs [Re: Waidmannsheil]
      #366883 - 19/06/22 04:20 PM

Quote:

I hope to use it on Buffalo later this year if all goes according to plan

Matt.




I hope so. And we get to read about it and see photos here on NE.

PS can we see your reshaped stock .505 Gibbs CZ rifle? Can you take some photographs? Thanks.

--------------------
John aka NitroX

...
Govt get out of our lives NOW!
"I love the smell of cordite in the morning."
"A Sharp spear needs no polish"


Edited by NitroX (19/06/22 04:21 PM)


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NitroXAdministrator
.700 member


Reged: 25/12/02
Posts: 35787
Loc: Barossa Valley, South Australi...
Re: 505 Gibbs [Re: zephyr]
      #366884 - 19/06/22 04:27 PM

Quote:

Some where along the line I fell in love with the 505 Gibbs. The clean lines of an un-scoped big bore rifle and a bore diameter that will quicken your pulse and swallow your dreams.
After my last Safari five years ago I decided to put one together for my next hunt this August a Buffalo and Tuskless affair.




Good luck. We definitely want to see this rifle, photos and stories of your safari. Coming soon, are you getting excited?

--------------------
John aka NitroX

...
Govt get out of our lives NOW!
"I love the smell of cordite in the morning."
"A Sharp spear needs no polish"


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Waidmannsheil
.400 member


Reged: 19/04/13
Posts: 2167
Loc: Melbourne Australia
Re: 505 Gibbs [Re: NitroX]
      #366979 - 22/06/22 08:16 PM

Yes definitely, I will do a full report with pics, will have to learn how to post photos, LOL

The gun is partially in the white at the moment and there are bits under construction. When I go up to the NT the gun will be in stage 1 and I will take some pics. Then I will finish t to how I want in stage two and take some more pics. I have learned a lot about the CZ550 and how to improve it and modify it for much better function. When its all finished I will do the same to the 416 Rigby I have, also a CZ550.

One thing I have also learned is that there are many tricks and mods that must be employed to make the CZ550 handle the 505 Gibbs properly and function correctly. It is nothing like any other cartridge out there. It would be interesting to see an original Gibbs built on a Mauser action and see how it operates and any tricks that they employed.

Matt.

--------------------
There is nothing wrong with vegetarian food, so long as there is meat with it.


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szihn
.400 member


Reged: 24/06/07
Posts: 1978
Loc: Wind River Valley, Wyoming
Re: 505 Gibbs [Re: Waidmannsheil]
      #368126 - 04/08/22 03:19 PM

I have a 505 barrel blank to sell if anyone is interested. I believe it's an old Buhmiller barrel. It was a friend's barrel but he died before he could make the rifle. His widow asked me to sell it for her.

$175 plus shipping.

PM me if you are interested


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93x64mm
.416 member


Reged: 07/12/11
Posts: 3297
Loc: Nth QLD Australia
Re: 505 Gibbs [Re: Waidmannsheil]
      #368127 - 04/08/22 09:19 PM

Quote:

Yes definitely, I will do a full report with pics, will have to learn how to post photos, LOL

The gun is partially in the white at the moment and there are bits under construction. When I go up to the NT the gun will be in stage 1 and I will take some pics. Then I will finish t to how I want in stage two and take some more pics. I have learned a lot about the CZ550 and how to improve it and modify it for much better function. When its all finished I will do the same to the 416 Rigby I have, also a CZ550.

One thing I have also learned is that there are many tricks and mods that must be employed to make the CZ550 handle the 505 Gibbs properly and function correctly. It is nothing like any other cartridge out there. It would be interesting to see an original Gibbs built on a Mauser action and see how it operates and any tricks that they employed.

Matt.




Matt,
could you let on what your mods were please?
I have a CZ550 in 404 Jeffery, that had an issue picking up the first round so I added a tapering block behind the follower which made the rounds sit higher at the back, works perfectly now.
I think the main issue was that the magazine spring was simply just too weak!
Apart from that I have no issues with it, recoil is stout with 400's going at 2300+fps, but I find the stock perfect for me.
A mate had one in 505 Gibbs, it shot 600gn pills to the sights perfectly at say 30-40 yards, not sure what speed they were doing but they punched thru 18" or more of gum tree & kept on going!
It had one hell of a lot of recoil, but I found it quite tolerable standing up, as did my son who was only 16-17 at the time, made him step back a few paces when he fired!
Every time I fired it i knew exactly where those bullets were going, right on the money every time, gave you a lot of confidence firing it!


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