quote:

Originally posted by Cougarz:


Sometimes you really amaze me!

quote:

Originally posted by dogcat:
Your disease is curable....

Can't wait to see the end result....

quote:

Originally posted by D R Hunter:
RIP, You are a thorough man.

quote:

Originally posted by boom stick:
Sooooooo the 425 WR must be a good FN feeder? Why was it made to be a single stack? lazy gunsmith?

quote:

Originally posted by RIP:
When that rebated rim jumps into place at the top of the boltface, the long axis of the cartridge (center line) is higher than the centerline of the bore.
If the rim is not rebated, the cartridge would ride lower, its axis coinciding with the bore axis.
With the non-rebated rim the cartridge has a higher hurdle to start up the feed ramp.
The rebated rim is better at feeding FN solids,
or FN softs, cup points, cast bullets, etc.
Once the bullet starts into the chamber, the rebated-rim case is guided lower and back to centered with bore when chambered.
There is some extra vertical fishtailing with a rebated rim that is an aid to feeding FNs.



That is the shocker which I am now recovered from.
The 500 Jeffery may be better at something than any other of my rifles: Feeding FN bullets.




I have never had any luck at getting the S&H .510-caliber/535-grain brass FN solid to feed in a bolt action.
It has a meplat that is 75% of bullet diameter, and a pretty sharp edge to that meplat.
It would be a wicked performer as a solid, if it would feed.
I had relegated it to single-shot use in a Ruger No.1 500 A-Square.
No more!
I have close to 500 of those S&H 535-grainers.
I now have a good enough excuse to put together a 500 Jeffery: Parts is Parts.

.510-caliber bulleted dummies above, bullet weight, make, and COL:

1. 535-gr, S&H brass FN, 3.450"
2. 570-gr, GSC copper FN, 3.450"
3. 600-gr, Barnes brass RN solid, 3.485"
4. 570-gr, Barnes copper TSX, 3.495"
5. 570-gr, Hornady DGX, 3.500"
6. 450-gr, GSC copper HV (old pattern), 3.645"
7. 600-gr, Barnes Original, 3.795"
8. 647-gr, Barnes copper XBT, 4.040"

Number 8 won't fit in the box, but will go into the top position in the box with tip of bullet resting on feed ramp.
The action will allow chambering and ejecting of loaded rounds at 4.040" COL.

Number 7 is just to verify that 3.795" COL loads and feeds through the box.

From a dusty corner safe emerged a CZ 550 Magnum with gumption. It started off as a .416 Rigby Hogback.
But it was not satisfied to remain a .338 Lop'wah with a 23" barrel, though a fair shooter.
This rifle has talent for the 500 Jeffery event:



It will get re-stocked, like a new pair of track shoes.
Like that first pair of Adidas my Pop took me to Indianapolis to buy when I was 14 years old and new to runnin' for sport.
Game of Rifles is the sport now.
Winter has come, but I can still play with rifles indoors until the thaw comes to allow the chronograph to work outdoors.

Rip ...

quote:

Originally posted by D R Hunter:
RIP, You are a thorough man.

quote:

Originally posted by RIP:
Chuck,

I am hanging up the 500 Jeffery Hater Hat, for better or worse.

Jeffe,

Yep, I must get a new barrel from McGowen.
But I do not need the CZ contour, the contour of a Winchester M70 Classic .375 H&H with a bigger hole down the middle would be more fitting.
In fact the last barrel bedded in that stock was just such a barrel, set back and re-chambered to .375 RUM.
I still have that take-off barrel too, but the action became a .375/404JS of 2012,
which was an improvement over the .375 RUM.
Now the stock is getting a different action and a virgin barrel. Ooh la la.

The old .510 JAB barrel is a target contour that is too heavy for my stock.
Besides, I could not bear to desecrate the shallow engraving on this relic of the past.
Onward to a new era of 500 Jeffery Love, for better or worse.

Rip ...

quote:

Originally posted by boom stick:
single stack and stripper clips only for me for the 425 WR. I have a RUM brass 245 WR dummy round and with the minor rebate it will work much better with standard modern donor rifles.

quote:

Originally posted by RIP:
CHIPB,

Of course you are forgiven by little ol' moi.
But can you find it within yourself to forgive moi for being a 500 Jeffery hater?
I am a 500 Jeffery hater no longer.

Rip ...

quote:

Originally posted by 416Tanzan:

quote:

Originally posted by RIP:
CHIPB,

Of course you are forgiven by little ol' moi.
But can you find it within yourself to forgive moi for being a 500 Jeffery hater?
I am a 500 Jeffery hater no longer.

Rip ...

And the purpose of a 500Jeffery, I assume, is to load it well beyond factory specs. Yes?

But of course, including with my stash of 50 BMG milsurps like the 35-cent-Black-Tip-AP 700-grainers
that are almost as accurate as match bullets.

Otherwise, a person could take a common Ruger Hawkeye and duplicate or slightly better factory Jeffery specs with the 500 AccRel Nyati. Pretty awesome.

Yep. I have that .510-caliber 500 Bateleur on an FN standard (30-06 donor) M98, brass is 2.700", only 0.050" longer than the 500 ARN,
as well as a 500 Bateleur Wby MkV, which I could possibly turn into a 500 Jeffery (500 Jeffery reamer would clean it up without setback of barrel, long throat it and stamp "Jeffery" in front of the "500 Bateleur" if mischief was the purpose ...)
and the .500-caliber 12.7x68mm Magnum, 2.657" brass is only .007" longer than the 500 ARN, on a Win M70 Classic ...

And your 500Mbogo

3.000" stretched Rigby case, .510-caliber, two of those on CZ 550 Magnums.
Wondering now if I really need two of those? One of them could be re-barreled to 500 Jeffery with no mischief ... or the thoroughly reinforced laminated stock on one of them (the one with original Harry McGowen CZ-Dog-Nut barrel contour) could be taken off and replaced with a Kevlar/Aramid stock like the other one has.
One can make a Pac-Nor #6 sporter contour work in the Kevlar/Aramid stock with some sanding, like on 500 Mbogo No.2.
Then the laminate could go to a fat-barreled 500 Jeffery ...
Or just use a Kevlar/Aramid stock on a 500 Jeffery with the Pac-Nor #6 sporter contour, but slower than 1:9" twist!
McGowen will make 1:12" twist Pac-Nor contours,
now my favored .510-grooved barrel: McGowen
The 1:12" twist on a 500A2-class rifle (including all discussed here) mimics best the spin of the 50 BMG with 1:15" twist and heavy bullets.
1:12" twist might be better with 777-grain FNGC cast bullets at modest velocity.
The 500 Mbogo with 1:10" does fair with those at 1800 fps MV.
I have not tried those in the 1:9" twist 500 Mbogo.


or the 500A2
Only one remains, on a Ruger No.1,
straight-taper McGowen 1:10" twist with 1.000" muzzle diameter at 29" length, very accurate with 50 BMG match bullets.
The other was reduced to a take-off barrel ...

can easily better 500 Jeffery specs without the rebated rim.

Yep, beating classic 500 Jeffery foot-pounds with all of those is easy.

Just keeping things in perspective.

Thanks, I am still cogitating.

I will admit that I needed to take a dremel tool to the Hawkeye in order to get Flat-Nose solids to feed. I bevelled the ramp a little lower and a little wider, and even put a slight bevel on the magazine leading to the ramp. Also, a very slight touch was added to the underside of the rails so that the rounds were encouraged to ride high when the bolt came through. Those bevels were in the neighborhood of 1/30" to 1/50" of an inch. Nothing earth shattering or weakening the action, but they made a distinct difference in feeding.


The light on the right is a flashlight, the bright area on the left is the bevel that was added to the ramp.

Excellent illustration of how to improve feeding of FN solids!

quote:

And this reminds me.
For the upcoming .458 Win.Mag. and 500 Jeffery, both with 3.8" boxes and room to spare,
I will ask for a 1/10" thick steel plate to re-inforce the front of the box, to prevent denting of the sheetmetal,
BUT IT WILL BE PLACED INSIDE THE BOX, not on the outside front of the box,
and beveled to fit flush with the feed ramp as illustrated by 416Tanzan above.

quote:

Originally posted by boom stick:
Just call your new free bore kitten the 500 Chuck Norris. Then you won't have to use any ammo. Just point it and they will fall over in fear. Remember, Chuck Norris does not go hunting because that would imply a chance of failure. Chuck Norris goes killing.

quote:

Originally posted by Atkinson:
think .425 WR, those magic little clips that have been overlooked for a century or so, why that is I have no idea, maybe todays smits don't have the skill or the wheretofore..

quote:

Originally posted by RIP:
.510/535-grain S&H brass FN solid with relatively sharp-edged 70% meplat.

SD = 0.294

This is the traditional weight for a 500 Jeffery.

I am going to have to get out the Iron WaterBoard Buffalo to see how it does against the 570-grain brass BBW#13 Safari Solid,
and the 570-grain GSC FN.
That would be a worthy trio to test.
Might be interesting.

Rip ...