The Accurate Reloading Forums
500 Mbogo brass: Quality Cartridge Delivers (R.I.P. 500 Jeffery)
25 October 2008, 06:52
RIP500 Mbogo brass: Quality Cartridge Delivers (R.I.P. 500 Jeffery)
Ladies and gentlemen, Elvis has entered the building!
The King of the Five Hundreds speaks:
"Pete Cardona, thank you, thank you very much."
"Dave Estergaard, send Rip a PM."
Rip here: Peter made this brass from Hornady .416 Rigby basic. It only measures 2.940", but the neck can grow to give 3.000" Max length.
I'll probably never have to trim to 2.990".
25 October 2008, 07:06
boom stick
Congrats RIP!!!
25 October 2008, 07:19
RIPboom stick,
Thank you, thank you very much.
I gotta go add this link to my "Quality Components" billboard:
www.qual-cart.com25 October 2008, 07:23
Charles_HelmIt's like Christmas in October.
Congrats!
25 October 2008, 07:36
RIP
25 October 2008, 07:42
.366torqueExcellent! Have you got ahold of Dave? I'm sure he'll be tickled with the news!
It'll give him a reason to build another wolloper.
25 October 2008, 08:09
Bwana-beJust...
beautiful.
My crush on the 470 Mbogo is waning just looking at those cases.
Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.
25 October 2008, 08:13
boom stickThe 500 A2 has been perfected!
25 October 2008, 08:52
RIPquote:
Originally posted by boom stick:
The 500 A2 has been perfected!
Good one!

Beats a 500 Jeffery too, AND no confusion over brass bastardization issues.
Big Daddy Dave Estergaard has been informed that his offspring has a brother ... maybe some of Ol' Dave's wild oats, but I have adopted it.
It is a family tradition, going back to my ancestors having adopted Abraham Lincoln's mother who was sired by a Berry boy.
No Jeff Foxworthy jokes please.

Redding might have the reloading dies ready by the end of the year.
Until then I can make do by overworking a few cases with 470 Mbogo dies as a sizer-decapper, and 500 Jeffery dies as a decapper, expander, neck sizer, and crimper. Then fireform to sharpen the shoulder.
Ample shoulder, eh?
Not all 500 Jeffery stuff is useless.

25 October 2008, 18:11
jeffeossoCongrats Ron,.,...
25 October 2008, 21:44
RIPjeffeosso,
Thank you, thank you very much.
Rip
27 October 2008, 04:51
RIP"500 Mbogo Dummies: Not for Dummies"
This is chapter one of the book entitled:
500 Mbogo: Keep Your Pinky Finger Flexed and Your Powder DrySome COL's:
Barnes XBT 647-grain: 4.278"
Barnes Original RNSP 600-grain: 3.736"
Barnes Old RN Brass Solid: 3.682"
Barnes TSX 570-grain (first cannelure): 3.708"
Barnes TSX 570-grain (second cannelure): 3.826"
Barnes XLC Smurf 570-grain: 3.715"
Andre's Copper Cup Point 550-grain: 3.668"
GSC FN 570-grain (second band): 3.743"
GSC HV 450-grain (third band): 3.750"
Sure makes the 500 Jeffery look like an ugly duckling, eh?
500 Jeffery Bertram brass vs. 500 Mbogo Quality Cartridge (Hornady) brass:
27 October 2008, 05:26
RIPThick-skinned DG: Barnes TSX and GSC FN 570-grainers at 2500 fps/7492 FPE
(and less pressure than the 500A2)
Lion, leopard, plainsgame, varmints: GSC HV 450-grainer at 2742 fps/7500 FPE

27 October 2008, 05:54
RIPDummies for Dave:
27 October 2008, 08:07
CanuckVery, very nice RIP! Congrats on your most recent newborn.

Too bad it won't clean up a 500 A-Square chamber.

Cheers
Canuck
27 October 2008, 09:31
RIPCanuck,
Cut off .415" of the pesky belt end of the 500 A2 chamber and it will clean up all the way through the throat. Make it 1/2" setback and you are way into virgin territory.
I have a Ruger No.1 in 500 A2 that is wanting to become a 500 Mbogo. That will be easy.
The 500Mbogo is bigger than the 500A2 above the belt, a wee bit longer (0.1" longer with full grown brass), and no mini-rebate either.
The 500 Mbogo Neck-1 and Neck-2 diameters are .532", whereas the 500A2 is .537" and .536".
The 500A2 neck is only .393" long so the neck slop goes away too with that .415" setback.
Base to shoulder of 500 Mbogo: 2.480"
Base to shoulder of 500A2: 2.485"
500A2 freebore length is .400" long, so that goes away too with the .415" setback. 500 Mbogo free bore is .500" long and .511" diameter.
The 500 mbogo has a bigger diameter everywhere else above the 500A2 belt. 500 Mbogo shoulder diameter is .572", 500A2 is .568", for brass max.
500 Mbogo reamer min. diameters are .535" for neck and .575" for shoulder.
Both have a 35-degree shoulder angle, just like the 470 Mbogo.
Take the 470 Mbogo and give it the neck and shoulder dimensions above, and grow it from 2.945" to 3.000" (500A2 is 2.900"): Simple as that. Very near caliber-length neck (.492" brass max, and .500" reamer min. neck length).
With newborn brass at 2.940" length, the brass neck is .432" long, still beats 500A2 and 500 Jeffery neck length.
Pretend like I just handed you a cigar.

27 October 2008, 10:39
Hog Killerquote:
Originally posted by jeffeosso:
Congrats Ron,.,...
+1
Keith
IGNORE YOUR RIGHTS AND THEY'LL GO AWAY!!!
------------------------------------
We Band of Bubbas & STC Hunting Club, The Whomper Club
27 October 2008, 18:37
Bent FossdalYea, congrats, RIP!
Looking VERY good!
Bent Fossdal
Reiso
5685 Uggdal
Norway
28 October 2008, 01:32
Canuckquote:
Originally posted by RIP:
Canuck,
Cut off .415" of the pesky belt end of the 500 A2 chamber and it will clean up all the way through the throat. Make it 1/2" setback and you are way into virgin territory.
My knowledge on rechambering with a set-back is lacking. My concern is with sights, etc. Would one have to set it back a complete revolution of the barrel, and then what are the odds of them not being perfect and requiring additional monkeying, and is this a big deal? And how badly would this mess up the wood-metal fit in the barrel channel?
I would only be out the re-chambering work, a new set of dies and some brass...could be worth it to adopt another member of the Mbogo family into my safe.
quote:
Pretend like I just handed you a cigar.
Thanks, proud Poppa.

28 October 2008, 04:41
jeffeossoChris,
while you could probably shoot the 500 in the a2 chamber, your A2 WILL require a barrel setback and more than just rechambering...
if you like your stock, a new barrel would be the fastest way ... its a "Depends" .. do you like your stock or barrel better, or, if it's a synthetic, you can just rebed and fill after the barrel is cut back and rechambered.
Right RIP?
28 October 2008, 07:27
RIPjeffeosso,
If brass and chambers are in spec, you won't be able to chamber a 500 Mbogo cartridge in a 500A2 rifle. I would try it, but I am worried about "scrapping" a belt on the 500 Mbogo brass, compressing the full length of the case body, squeezing the shoulder down, and pinching the case mouth into the bullet at the end of the 500A2 chamber. Might be possible with a mallet, not a cricket mallet, but a little 4-pound sledge might do it.
01 November 2008, 09:12
RIP398 Lapua dies have arrived on schedule.
500 Mbogo dies from Redding should be here before 2009, just to keep it "Fifty Aught Eight."