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

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casper50
.400 member

Reged: 18/10/07
Posts: 1445
Loc: Alaska

Building a .500 Jeffery.
#354619 - 25/06/21 10:34 AM

Thought that I'd show photo progress of my .500 Jeffery build. I'm not personally doing it a gunsmith is. Started with a Sarco Mauser action, Swift bottom metal, a .458 follower and a Douglas .500 barrel 26" contoured Remington 5a I believe.

action and barrel mated for the first time. Threads were sloppy so had to cut and rethread. Barrel now 25.25".

barrel contour compared to a standard 30-06

The business end.

the bottom metal that came with it and the Swift bottom metal.

removing tool marks.

getting ready to machine the mag opening on the action to mate the bottom metal to the action.

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DarylS
.700 member

Reged: 10/08/05
Posts: 27000
Loc: Beautiful British Columbia, Ca...

Re: Building a .500 Jeffery. [Re: casper50]
#354620 - 25/06/21 10:47 AM

Cool project, casper.

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

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

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bwanabobftw
.375 member

Reged: 29/12/04
Posts: 675
Loc: Texas

Re: Building a .500 Jeffery. [Re: DarylS]
#354621 - 25/06/21 11:43 AM

Looks great can’t wait to see it finished.

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casper50
.400 member

Reged: 18/10/07
Posts: 1445
Loc: Alaska

Re: Building a .500 Jeffery. [Re: bwanabobftw]
#354627 - 25/06/21 07:06 PM

I having a very hard time finding someone to duplicate a stock blank for me. Have the checkerer lined up just need a blank duplicated.

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93x64mm
.416 member

Reged: 07/12/11
Posts: 4200
Loc: Nth QLD Australia

Re: Building a .500 Jeffery. [Re: casper50]
#354630 - 25/06/21 09:44 PM

Coming along nicely Casper!
I can't believe that you can't get a stock duplicated in the States, surely someone out there must be able to do it - perhaps Boyds if you can give them the 'template stock' & the blank that you need to complete it?
Please keep up with your build photos - very interesting Calibre the 500 Jeffery

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degoins
.333 member

Reged: 28/02/06
Posts: 435
Loc: SC, USA

Re: Building a .500 Jeffery. [Re: 93x64mm]
#354631 - 25/06/21 11:26 PM

Try Steve at www.bertramandco.com for your stock duplication.

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casper50
.400 member

Reged: 18/10/07
Posts: 1445
Loc: Alaska

Re: Building a .500 Jeffery. [Re: degoins]
#354659 - 26/06/21 04:12 PM

This is how much metal must be removed.

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casper50
.400 member

Reged: 18/10/07
Posts: 1445
Loc: Alaska

Re: Building a .500 Jeffery. [Re: casper50]
#355092 - 11/07/21 06:40 PM

Trying to buy this stock blank. Grain runs through the wrist very well and I love the smokey type grain.

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93x64mm
.416 member

Reged: 07/12/11
Posts: 4200
Loc: Nth QLD Australia

Re: Building a .500 Jeffery. [Re: casper50]
#355095 - 11/07/21 09:30 PM

That's one very nice piece of walnut Casper, when that gets oiled up it will look bloody beautiful!

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casper50
.400 member

Reged: 18/10/07
Posts: 1445
Loc: Alaska

Re: Building a .500 Jeffery. [Re: 93x64mm]
#355142 - 14/07/21 07:49 AM

I won the stock off of ebay. Sent to the gunsmith to make sure it will fit the action within the sellers 30 return policy. Then if it will work fine I'll get it and begin the finish work.

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casper50
.400 member

Reged: 18/10/07
Posts: 1445
Loc: Alaska

Re: Building a .500 Jeffery. [Re: casper50]
#355436 - 21/07/21 06:01 AM

Smith is rethreading my barrel as the threads and receive had lots of slop. I appreciate his diligence in noticing and saying something, and fixing the problem.

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93x64mm
.416 member

Reged: 07/12/11
Posts: 4200
Loc: Nth QLD Australia

Re: Building a .500 Jeffery. [Re: casper50]
#355437 - 21/07/21 07:13 AM

Coming along nicely albeit slowly for you Casper!
How did the stock go, I hope that part worked out for you mate?
I'm assuming here that you have got dies & brass etc, can you tell us what loads you intend to run in this beast?

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casper50
.400 member

Reged: 18/10/07
Posts: 1445
Loc: Alaska

Re: Building a .500 Jeffery. [Re: 93x64mm]
#355440 - 21/07/21 07:51 AM

Going to use Woodleigh 570 grains. But haven't decided on a powder or amount as of yet. I had the stock sent the smith for him to make sure that the 98% inletting wasn't too large. Stock had a 30 day return policy and I don't think I'll get the metal back in time to make that cutoff. Smith said it will work.

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Homer
.416 member

Reged: 07/04/09
Posts: 3081
Loc: Canberra, Australia

Re: Building a .500 Jeffery. [Re: casper50]
#355663 - 30/07/21 08:25 AM

G'Day Fella's,

FYI Casper50, in the current edition of Wolfe Publishing's "Handloader" magazine (#333, August 2021, page 12), there is a brief article by Gil Sengel on the 12.7 x 70 (.500 Jeffery or .500 Schuler) cartridge.

Let me know if you can't get your hands on a copy of this article, and I can scan and email you a copy of it.

Avagreatweekendeh!
Homer

--------------------
"Beware the Lolly Pop of Mediocrity,
Lick it Once and You Will Suck Forever"

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casper50
.400 member

Reged: 18/10/07
Posts: 1445
Loc: Alaska

Re: Building a .500 Jeffery. [Re: Homer]
#356760 - 15/09/21 02:29 AM

Barrel and action now fit together.

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NorfolkShooter01
.224 member

Reged: 02/08/21
Posts: 30
Loc: United Kingdom

Re: Building a .500 Jeffery. [Re: casper50]
#356797 - 16/09/21 07:52 AM

Looking like a smart rifle in the making there mate. I was told buy Sherley at woodliegh that the canular on the 570rgn is wrong for the jeffery adn she advised not to use it. Thats not to say it cant be done

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DarylS
.700 member

Reged: 10/08/05
Posts: 27000
Loc: Beautiful British Columbia, Ca...

Re: Building a .500 Jeffery. [Re: NorfolkShooter01]
#356800 - 16/09/21 10:17 AM

With a good tight fit between the case neck and bullet, they shouldn't need crimping, should they?

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

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

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Marrakai
.416 member

Reged: 09/01/03
Posts: 3592
Loc: Darwin, Top End of Australia

Re: Building a .500 Jeffery. [Re: DarylS]
#356805 - 16/09/21 01:18 PM

Yeah, they need crimping alright!
The neck on the .500J is technically too short, given the inertia of the heavy projectile during recoil.
No-one I know, or have ever corresponded with, has been able to get away with not crimping this cartridge.
One 500J-owner, reloading at my bench a few years ago, scolded me for reaching for the deburring tool after case-trimming.
In his opinion the sharp case-mouth helped the crimp to hold!

--------------------
Marrakai
When the bull drops, the bullshit stops!
--------------------------------
www.marrakai-adventure.com.au

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DarylS
.700 member

Reged: 10/08/05
Posts: 27000
Loc: Beautiful British Columbia, Ca...

Re: Building a .500 Jeffery. [Re: Marrakai]
#356827 - 17/09/21 02:32 AM

Oh yeah - forgot about neck length. Makes sense.

I used the sizer die for my 6.5x68 as a crimping die for my .50/70 Sharps (to help ignition as well as hold the bullet in a non-sized cased).
I don't think the shoulder would be in the way as the case did not enter the die's base very far.

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

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

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NorfolkShooter01
.224 member

Reged: 02/08/21
Posts: 30
Loc: United Kingdom

Re: Building a .500 Jeffery. [Re: Marrakai]
#356830 - 17/09/21 04:24 AM

Did not de burring help then??

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Marrakai
.416 member

Reged: 09/01/03
Posts: 3592
Loc: Darwin, Top End of Australia

Re: Building a .500 Jeffery. [Re: NorfolkShooter01]
#356841 - 17/09/21 09:08 AM

Quote:

Did not de burring help then??

Beats me!
My friend's contention was that the sharp edge after trimming adds extra "bite" to the crimp.

Admittedly, deburring is in reality outside-deburring and inside-chamfering, the latter thinning the brass at the very point where it needs to be strongest, to hold the crimp.
So perhaps his argument was valid!

--------------------
Marrakai
When the bull drops, the bullshit stops!
--------------------------------
www.marrakai-adventure.com.au

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DarylS
.700 member

Reged: 10/08/05
Posts: 27000
Loc: Beautiful British Columbia, Ca...

Re: Building a .500 Jeffery. [Re: Marrakai]
#356860 - 18/09/21 02:15 AM

The trouble with zero chamfering, is bullet shaving upon seating them.
Just barely removing the trimming burr would help.

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

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

Post Extras:

Marrakai
.416 member

Reged: 09/01/03
Posts: 3592
Loc: Darwin, Top End of Australia

Re: Building a .500 Jeffery. [Re: DarylS]
#356867 - 18/09/21 07:49 AM

Well, sure.
Personally, I always deburr cases after trimming.
But they're guilding metal after all, not lead, and I don't think the quarry could ever detect a few minor cosmetic scratches on the bullet at impact!

--------------------
Marrakai
When the bull drops, the bullshit stops!
--------------------------------
www.marrakai-adventure.com.au

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casper50
.400 member

Reged: 18/10/07
Posts: 1445
Loc: Alaska

Re: Building a .500 Jeffery. [Re: Marrakai]
#357024 - 24/09/21 03:08 PM

Bought some sights off of Ebay UK for the .500. For the work that has gone into making these I almost stole them. I know 500 yds is unrealistic and will never happen. I just like express leaf sights. lol

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m239
.300 member

Reged: 13/09/17
Posts: 106
Loc: Australia

Re: Building a .500 Jeffery. [Re: casper50]
#357353 - 13/10/21 08:33 AM

Hey Casper - great project.

Thanks for sharing.

Looking forward to following the story through to completion ;-)

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