24hourcampfire.com
Previous Thread
Next Thread
Print Thread
Hop To
Page 1 of 2 1 2
Joined: Jan 2016
Posts: 1,878
R
Campfire Ranger
OP Online Content
Campfire Ranger
R
Joined: Jan 2016
Posts: 1,878
Before I had a religious conversion to the .458 Winchester Magnum faith,
I dithered with many big bore chamberings and lots of wildcats.
I made a false start on the .500 Jeffery in 2003, finding a dusty box of .500 Jeffery dies made by North Devon of the British Isle.
That was in Rapid City, South Dakota, in a small shop now gone defunct.
I also saw a couple of .500 Jeffery rifles complete at First Stop,
and had just returned from a side trip to the outskirts of Oklahoma City
where I had fired a fellow gunnut's .500 Jeffery made by Sterling Davenport on a standard M98 action.
That was an amazing rifle.
So, I was a sucker for the dies as a start down the trail.
Here is the siren that called to me:

[Linked Image]

I checked this PT&G reamer print by Dave Kiff and found it faithful to CIP chamber and brass drawings:

[Linked Image]

Here is a detail from an article by well-known .500 Jeffery fan Tony Sanchez-Arino,
and even he can find something to complain about:

[Linked Image]

OK, Jeffery copied the original .500 Schuler "Jumbo" (12.7x70mm Schuler)
regarding later release of the .500 Jeffery with same case head and rim anyway.



Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
BP-B2

Joined: Jan 2016
Posts: 1,878
R
Campfire Ranger
OP Online Content
Campfire Ranger
R
Joined: Jan 2016
Posts: 1,878
Here is the article by Tony:

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]



Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
Joined: Jan 2016
Posts: 1,878
R
Campfire Ranger
OP Online Content
Campfire Ranger
R
Joined: Jan 2016
Posts: 1,878
Metaphor:

Now that Norma has discontinued production of .500 Jeffery brass,
if I ever found any of the non-rebated-rim brass,
my response to Norma brass, if the Norma brass is a Harrier jet:

[Linked Image]

If that ever happens, just open up the bolt face of the .500 Jeffery rifle using Norma brass.
Until then, make do, just for fun, i.e., use the .500 Jeffery rifle as a substitute
preventing a .50-140-3.5" Sharps 1874 boondoggle.
Both cartridges have same gross capacity within 1 grain of H2O.
CIP is the well-established standard for the .500 Jeffery.
The standard twist for the .500 Jeffery is 1:20", great for cast bullet loads,
even paper-patched and BP.
What cheer !

Another great metaphor:

[Linked Image]



Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
Joined: Jan 2016
Posts: 1,878
R
Campfire Ranger
OP Online Content
Campfire Ranger
R
Joined: Jan 2016
Posts: 1,878
Re-cap:

[Linked Image]

Above are first 3 feed dummies made by this dummy.
That Bertram brass has a rim diameter of 0.571".
Norma brass has a diameter of 0.574" which is very close to spec of 0.575" maximum, about .015" smaller than .416 Rigby rim diameter.
Parts is parts, the collection grew slowly over a 17-year period:

[Linked Image]

[Linked Image]

The dummy collection expanded.

[Linked Image]

I tried to resist, but I found a CZ .416 Rigby action that fed the dummies, all of them.
Never an over-riding of the rebated rim by the bolt !
So a reamer was ordered, to match a CIP chamber but with a wee bit of throat added:

[Linked Image]

And finally a barrel was decided upon, from McGowen, arriving in 2020, resistance was futile.
The Rigby bolt face is a loose fit on the .500 Jeffery rim.
Some of that improved brass with a bigger rim diameter sure would be nice.



Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
Joined: Jan 2016
Posts: 1,878
R
Campfire Ranger
OP Online Content
Campfire Ranger
R
Joined: Jan 2016
Posts: 1,878
Now 19 years in the works, and not finished yet:

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]



Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
IC-A B3

Joined: Sep 2009
Posts: 45,819
G
Campfire Oracle
Offline
Campfire Oracle
G
Joined: Sep 2009
Posts: 45,819
Good stuff Riflecrank, the 500 Jeff would have been a world star with 505 Gibbs rim, even with the short neck and no freebore, ample power still could have been derived, the Gibbs would have been perfection at .510 inch, always something to keep the lathes, end mills and drill presses going huh? ; ]


Trump Won!
Joined: Jan 2016
Posts: 1,878
R
Campfire Ranger
OP Online Content
Campfire Ranger
R
Joined: Jan 2016
Posts: 1,878
Ha! Now you got me thinking of running
.505 Gibbs brass into .500 Jeffery dies.
Or re-looking at the old .500 AHR which
was a .500 Jeffery with a wider rim and a longer neck.

And a McMillan stock with magnum fill would be only 2.75 lbs.
10 ounces lighter than the plywood post full of steel.



Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
Joined: Jan 2016
Posts: 1,878
R
Campfire Ranger
OP Online Content
Campfire Ranger
R
Joined: Jan 2016
Posts: 1,878
If I could squeeze the .505 Gibbs from .640" base to .620" base diameter, then trim the rims down to .620"
and shorten the brass to 2.750" and size and fire-form in a .500 Jeffery chamber,
I would call it the .500 Jerry.

As you were.
I got mixed up on the date I fired that Sterling Davenport .500 Jeffery.
It was in 2006, and it was actually 107 degrees F in the shade, outside OK City.
I have a record of all 5 shots I fired at 50-yard paper target, open sights,
3 with the fine bead in one hole,
then I flipped up the H&H-style "moon bead" and took a target hold on the top of that bead too, for the last two shots.
The bigger bead made those shots go lower and spread.
That must be the best iron-sight shooting I ever did,
and I recommend this load as an accuracy load to try in a .500 Jeffery:

[Linked Image]

That was for beginning to sight-in my fellow gunnutt's new rifle.

Here is the sort of beads used, though shown on another rifle:

[Linked Image]



Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
Joined: Jan 2016
Posts: 1,878
R
Campfire Ranger
OP Online Content
Campfire Ranger
R
Joined: Jan 2016
Posts: 1,878
Note that Horneber .500 Jeffery brass was used, available back then.
The brass situation is sorry now !

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

RCC brass for $12 per piece is only twice what Norma brass cost when it could be found previously.
The RCC brass could be made with non-rebated rim ...



Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
Joined: Jan 2016
Posts: 1,878
R
Campfire Ranger
OP Online Content
Campfire Ranger
R
Joined: Jan 2016
Posts: 1,878
Barrels and stocks:

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

Here is a .500 Mbogo with B&C stock:

[Linked Image]

[Linked Image]

That McMillan stock is currently on a .408/.338 Lapua Magnum Unimproved, aka 10.4 Spiridon Moor,
that has a No. 6 McGowen Light Target contour.
Conclusion: I need to leave the plywood on the other .500 Mbogo and use a McMillan stock on the .500 Jeffery Procrastination,
aka .500 Jeffery-P.



Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
IC-B B4

Joined: Oct 2021
Posts: 4,216
H
Campfire Guide
Offline
Campfire Guide
H
Joined: Oct 2021
Posts: 4,216
A very enjoyable thread.

Joined: Sep 2009
Posts: 45,819
G
Campfire Oracle
Offline
Campfire Oracle
G
Joined: Sep 2009
Posts: 45,819
You gotta hard handle on it Riflecrank, now all we need to do is somehow invent more time ; ]


Trump Won!
Joined: Feb 2004
Posts: 16,522
Campfire Kahuna
Offline
Campfire Kahuna
Joined: Feb 2004
Posts: 16,522
Yeah, very interesting. I’d probably sit in the shade and watch the range work though.🙂

Joined: Dec 2017
Posts: 255
F
Campfire Regular
Offline
Campfire Regular
F
Joined: Dec 2017
Posts: 255
I had a 505 Gibbs. Very enjoyable rifle. Bertram brass was all I could get in the beginning. The rim diameter varied by forty thousandths. A very large friend of mine was at some show, Jim bell had two boxes of Gibbs brass on his table. He grabbed them and said what do you want for them? Bell said he didn’t want to sell them, my large friend said they’re going home with me and tossed him a hundred. Jamison brass was wonderful as was the bell. I burned lots of WC 860 lit by Federal 215s. A cast 600 grain gas check was my bullet. Used it on bison hunts as backup dealing with bulls.
Had to sell it, recoil was too much for my neck.

Joined: Jan 2016
Posts: 1,878
R
Campfire Ranger
OP Online Content
Campfire Ranger
R
Joined: Jan 2016
Posts: 1,878
My reason for doing this .500 Jeffery-P is to shoot any cast bullet that was just not quite right in a too slow or too fast twist in the rifles
I already have:

[Linked Image]

[Linked Image]

[Linked Image]

1:20" seemed to be just what I needed for maximum cast-bullet utility,
and coincidentally that is the standard twist for the .500 Jeffery per CIP,
and it is darn good for .510/535-grain jacketed at full nitro.
I'll deal with the quirks as they come.



Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
Joined: Jan 2016
Posts: 1,878
R
Campfire Ranger
OP Online Content
Campfire Ranger
R
Joined: Jan 2016
Posts: 1,878
Partial bullet sizing to fit the throat is to be considered, since the desired (major) bullet diameter inside the case is to be 0.512".

[Linked Image]

I really wish I had used a "coned-up" breech like on the .458 WinMag.
No worries with that sort of throat.
Might need a new throat reamer, or maybe even a neck and throat reamer.

Anyway, the rifle is going to look something like this when shootable:

[Linked Image]



Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
Joined: Jan 2016
Posts: 1,878
R
Campfire Ranger
OP Online Content
Campfire Ranger
R
Joined: Jan 2016
Posts: 1,878
Sadly, with sights, the rifle will be over 10 pounds, can't compete by Creedmoor Rules.
But wait ! That was for .45-bores !
A new .50-bore class with a 12-pound limit ?
With a little politics we can get the rules changed, the Democrats do it all the time.

[Linked Image]



Ron aka "Rip" for Riflecrank Internationale Permanente
NRA Life Benefactor and Beneficiary
.458 Winchester Magnum, Magnanimous in Victory
Joined: Sep 2009
Posts: 45,819
G
Campfire Oracle
Offline
Campfire Oracle
G
Joined: Sep 2009
Posts: 45,819
Originally Posted by George_De_Vries_3rd
Yeah, very interesting. I’d probably sit in the shade and watch the range work though.🙂

IIRC you also come from the medical field, if so, keeping the liquid advil i.v.'s running would be quite nice of you as Riflecrank and i keep on rolling with the flow, as Charlie Rich used to sing, LOL.


Trump Won!
Joined: Feb 2004
Posts: 16,522
Campfire Kahuna
Offline
Campfire Kahuna
Joined: Feb 2004
Posts: 16,522
I’m a lefty. I now have traumatic arthritis in my left shoulder from 20 years of elk hunting with a fairly light 340, and during that time working up a 416 Rem, and 458 Lott. Not to mention some others.

I might have to take some aspirin with my ice tea, just watching you guys. 😉

Joined: Sep 2009
Posts: 45,819
G
Campfire Oracle
Offline
Campfire Oracle
G
Joined: Sep 2009
Posts: 45,819
^^^^^^^^^^LOL, Damn! cool^^^^^^^^^^^^ We'll all make it man ; ]


Trump Won!
Page 1 of 2 1 2

Moderated by  RickBin, SYSOP 

Link Copied to Clipboard
CTV-TRX
Who's Online Now
151 members (257_X_50, 10gaugemag, 24HourCampFireGuy50, 264mag, 257Bobs, 1minute, 20 invisible), 1,062 guests, and 872 robots.
Key: Admin, Global Mod, Mod
RR2/3-22

UDG-IP









Fish & Game Departments | Solunar Tables | Mission Statement | Privacy Policy | Contact Us | DMCA
Hunting | Fishing | Camping | Backpacking | Reloading | Campfire Forums | Gear Shop
Copyright © 2000-2022 24hourcampfire.com, Inc. All Rights Reserved.
 
Powered by UBB.threads™ PHP Forum Software 7.7.5
(Release build 20201027)
Responsive Width:

PHP: 7.3.33 Page Time: 0.060s Queries: 15 (0.002s) Memory: 0.9518 MB (Peak: 1.1234 MB) Data Comp: Zlib Server Time: 2022-08-11 06:31:24 UTC
Valid HTML 5 and Valid CSS