i been thinging about building a 500 jeffery for some time now.
i have two action that i am not useing for anything they are p-14 and 98 mauser would any of those action work with out to many problems?

I suggest you search the forum for postings by jeffeosso. He built one on a P-17 or P-14, can't remember which, and will have a lot of insight on the subject. I believe he said it was a royal pain in the arse and that he probably wouldn't do it again. I think he reccomends building a 500 A-Square instead. As for the 98 there have been many built, but it probably would run you several thousand dollars to get one built right. The problem is feeding. On a 98 the most reliable feeding was with a single stack magazine that extended below the stock. My guess is that would be over a grand just to have the magazine custom built.
I thought of building one, just for the nostalgia, but decided against it. If and when I build one it will be a 500 A-Square. For one thing brass is about 5 times cheaper, easy to get (you use 460 Weatherby as the parent cartridge), dies are cheaper since you will probably be reloading and it is a very easy cartridge to get to feed in the P-14/17 rifle. It is too long for the 98. Hope this helps some.

I have 500 Jeffery dies and some brass for dummies in 500 Jeffery. I have read the monograph that Alf announced here, about the 500 Jeffery.

I do it for laughs only, consider building a 500 Jeffery, you see.

It is a horrid fat and stubby beast of a cartridge, short-necked (.344" at max), significantly rebated rim (40 thou), and a case capacity advantage only about 10 grains more than the 500 A-square, IF the bullet is seated no deeper than in the 500 A-2.

500 Jeffery brass availability may be tough at times, and a whole lot more costly than the better stuff like .338 Lapua Magnum and various .416 Rigby cases available for a comparative pittance.

That is why the 500 Mbogo makes more sense, AND the 500 Mbogo has a whole lot more shoulder than the 10.75x68mm Mauser and .411 Hawk, which walk on water.

The 500 Mbogo will be close to the 500 Jeffery in case capacity, and much easier to feed reliably, with its bigger rim and smaller head than the 500 Jeffery.

Did I mention the greater bolt thrust with the 500 Jeffery ... not as bad as the .505 Gibbs though, so never mind that angel dancing on the pinhead.

For nostalgia freaks only: 500 Jeffery and .505 Gibbs

Mustn't forget to extend the pinky fingers of both hands when firing a 500 Jeffery or .505 Gibbs.

what Mike said... it's a m1917...

feeding was a supreme hassle.. i've built 3, I don't want to do another.

pacnor #6 barrel, iirc

mauser with a single stack would be fairly easy

500A2/510 wells, or 495 asquare if you want a 50

550 mag or express if you want a true heavy

the 495 fits in a mauser, sort of

the 500 jeffe fits, too


If you really want one, and want someone ELSE to build it, www.empirerifles.com

if you want a struggle, then the 500 jeffe is the ticket.

if you wanted to build one,
before you start, get jim wisner's article on the enfield 416 rigby/505 gibbs. it will save you MONTHS.

1: have the enfield milled and profiled
2: send the action to pacnor, as for the print of their reamer.
2A send print to CH4D for dies - get TWO rcbs shell holders
3: ask pacnor to chamber and headspace it (it's a pain to do enfield threads RIGHT
3a-including barrel recoil lug, boltface and extractor
4: get a model 30 or striaghten the floor plate
5: build mag box according to the method described by Jim
6: i hope you have a mill... this is NOT a dremel tool exercise
7-234234 cuss yourself for not going with an easier round.

think of what you are going to do for a stock.

jeffe