Brass kissing has got me nowhere so far, regarding the "500 Jamison".

Still waiting to hear from Mr. Jamison as to whether he will make the .416 Rigby basic brass that is 3.000" long.

Drop back and punt.

Mr. Jamison does have some limited stock of 470 Mbogo brass, but he says one has to have permission from Dave Estergaard to buy it.

Really the name of the cartridge should be the
.510/470 Mbogo
or
"500/470 Mbogo" for cutesy
or
"500 Mbogo" for really cute and short.

Should Dave Estergaard give permission for the public to buy the 470 Mbogo brass and maybe encourage Jamison international to make more of it?

Dave: What's the deal with Jamison and 470 Mbogo brass?



.510/.416 Rigby ImProved = "500 RIP"

Gossip:
Some hunter is suing a loaded ammo manufacturer because his 505 Gibbs rifle went "click" at the moment of truth, and the PH had to shoot the cape buffalo. No one got hurt, other than the hurt to pride or the trophy fee for having the PH shoot the buffalo. Allegedly, the shoulder of the 505 Gibbs was set too far back by brass manufacturer or the commercial ammo loader.

Sounds like a nuisance suit to me.

Seems the "hunter" should have test-fired his rifle enough before the hunt to be aware of any ammo problems, and what would be the monetary damages of such injury to pride?

Jamison is not involved with this silly suit in any way, but I think it might prey upon his mind regards having his name on a cartridge with such a minimal shoulder as the "500 Mbogo."

Of course we are all well past the shoulder thing.

The 500 Mbogo would have nearly twice the shoulder and a 35 degree insted of 17 degree shoulder compared to the 411 Hawk or 400 Whelen.

The 400 Whelen problems were purely related to improper reloading dies.

The 10.75x68mm Mauser cartridge should be impossible, much less shoulder than the 500 Mbogo, but it is factory loaded.

The 500 Jeffery has neck that is only 1/3" instead of 1/2" and it has minimum body taper and and a rim that is rebated by about 40 thou.

The 500 Mbogo is a superior design.

etc.

HI Ron,
I just found this out about Jamison and the 470 Mbogo brass this week from another fellow that was interested in building a 470 Mbogo. I'm going to fax him this weekend and let him know that he should let the brass out to anyone interested. He certainly doesn't need to have my permission. The easier it is for people the better. Thanks for letting me know the situation exsisted.
Take good care,
Dave

Seems like if the 505 Gibbs rifle was built right, the extractor should have held the base up against the bolt face tight enough to fire.

Unless it was singly fed into the chamber and the shoulder was so far off there was room for the bolt to close without the extractor snapping over the rim? The chamber must be awfull sloppy too for the base to go that far forward.

Then of course it would fail to extract. All determinable before leaving for a hunting trip and certainly should have been checked beforehand.

RIP,
I think Neal is offering Mbogo brass on his website. Should be a small thing, if the order is the right size, for jamison to do some 3" basic!! You can have it engraved in the mall.

Dave,
thanks for making it public!

jeffe

quote:

Originally posted by 470 Mbogo:
HI Ron,
I just found this out about Jamison and the 470 Mbogo brass this week from another fellow that was interested in building a 470 Mbogo. I'm going to fax him this weekend and let him know that he should let the brass out to anyone interested. He certainly doesn't need to have my permission. The easier it is for people the better. Thanks for letting me know the situation exsisted.
Take good care,
Dave

Thanks, Dave!!!

Dave,
Thank you for the prompt attention. Dibbs!

quote:

Originally posted by jeffeosso:
You can have it engraved in the mall.

RIP, you are the master of arcane yet germane big bore esoterica. I am in awe, but not quite shock. Will the .500 MbogoRIP(off) be classified as a WMD? If so, then shock would certainly follow.

Until then, I remain, yr. obdt. svt. of the .500 A2,

I don't have it on the Page yet but with Daves ok I will. Now if I can just track down the guys who did the 550 Express, 550 Magnum, 550 Flanged, 550 Gibbs, 416 AR, 458 AR, and the 470 AR I might put them on there as well

quote:

Originally posted by mrlexma:
RIP, you are the master of arcane yet germane big bore esoterica. I am in awe, but not quite shock. Will the .500 MbogoRIP(off) be classified as a WMD? If so, then shock would certainly follow.

Until then, I remain, yr. obdt. svt. of the .500 A2,

I get the jest, but do you mean Destructive device? depends if the bore (not groove) is larger than .500


Hey Neal,
Sounds like you hang around a bunch of nutz!!!

jeffe

best hurry rip, my reamer is on order already. Sorry, forgot you are actually the originator of this medium fifty. My posts last year were actually a result of reading your mind one evening and posting it as my own creation here. hee hee! I'm going to put my name on it too, since I had to pay for the reamer set.

regards,

Rich

Rich,
"Medium Fifty" is a great way to look at these .510/.416 Rigby ImProved wildcats.

This emphasizes that they are sensible and masterable by mere mortals in a portable weight rifle with no muzzle brake.

Mahohboh MR has mastered the 500 A-Square. If he can do it, surely anyone can.

Our 500's will be a beltless and non-rebated ballistic twin of the 500 A-Square. Ultimate practical firepower in a sleeker package.

Glad to hear your project is progressing well. I have been too slow about this too, but it has certainly been well sounded out on the boards here.

Mine will be the 470/500 Mbogo or simply the 500 Mbogo, with a tip of the hat to Dave Estergaard for his design and nomenclature genius. Simple as that. He can add that to his "Mbogo Proprietary Line." Lessee see, that makes a battery of two so far?

Maybe the .375 Lapua, .423 Lapua, and .458 Lapua could finish off the "Mbogo Family" for a Big Five proprietary line, baby Mbogo's for the recoil shy, made with shortened Jamison brass.

Amazingly he is still selling a cylindrical .416 Rigby case that is 2.975" long and stamped with "470" on one side of the head and "Mbogo" on the other side: for only $1.10 per piece, factory annealed for forming into 470 Mbogo with a pass through the die and a trim.

Like so, imagine the smiley is the primer pocket and the letters and numerals of the head stamp are laid out like so):

Mbogo

470

Not the best bunter layout. This would have been better:

470

Mbogo

Or maybe:

470 Mbogo

Jamison

I might see if I can get Marc Jamison to let me buy another bunter with just "Mbogo" for possible future use like so, assuming no objections from Dave Estergaard (he should have all rights to the names if there are any considerations there):

500

Mbogo

470

Mbogo

458

Mbogo

423

Mbogo

375

Mbogo

Now my brass kissing idea is to get Jamison to make a 3.000" long Rigby basic case stamped only "Mbogo" ... Uh oh, there I go again.

Anyway, the more "Medium Fifties" the better. Congratulations,
And don't forget to reveal the name of your cartridge when the time is right.

Hi Ron,
I asked for the bunter to be the same as the brass shown on my website. Which has the 470 on the top and Mbogo on the bottom. I placed an order for 600 brass and was a little surprised when I saw the reversed headstamp, but what is one to do at that point. I haven't mentioned it to Marc and I'm just very happy there is a source of good brass available.
take good care,
Dave

RIP,
I go back and forth between the ego of my own name and 500 Mbogo.
Stroke or not.....?

Rich