The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Big Bores Again 500 jeffery v/s .500 asquareGo | New | Find | Notify | Tools | Reply | |
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But only one question... can you load the .500 jeffery to the same pressure as the .500 a-Square? What is the differnce between these 2 cartridges? I know that you say that "the 500 a-Square is a high pressure round, the .500 jeffery is not!" whats the difference? If you are using a modern rifle that can handle high pressure? Is the case of the .500 jeffery made so that it can not take high pressure as the .500 a-Square can? I have asked the same kind of questions here on AR but I still have not got any good answer about the thing I just asked. //Overkill | ||
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For all practical purposes there is very little difference between the A2 and the Jeffery in terms of ballistic capabilities. Both, along with the .505 Gibbs and R.I.P.'s .500 Mbogo can drive a 600 gr. bullet to 2500fps, more or less. The Jeffery is a slightly bigger case that when loaded to similar pressures, will equal or exceed the A2, but not by enough to really be meaningful,IMO. To me the real difference comes down ease of ownership and reliability. I've owned two Jeffery's that we're both plagued by feeding problems, brass of varying quality and shoulder angles ( Jeffery vs. Schuler ). I now own an A2 that feeds perfectly, and is a dream to load for and shoot. I kinda' tend to think of the Jeffery as a high maintenance supermodel, and the A2 as the really hot girl next door  | |||
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Both the Jeffrey and A-square can be handloaded to 8000 ftlbs. If you are looking for factory 500 Jeffrey ballistics, then the most economic calibre might be the 500AccRel Nyati, built on a Ruger Hawkeye. It does 7000ftlbs, equaling or bettering the factory Jeffrey, and in a little, lightweight gun. It jumps a little when firing. a Hawkeye needs a McGowen Barrels conversion. +-+-+-+-+-+-+ "A well-rounded hunting battery might include: 500 AccRel Nyati, 416 Rigby or 416 Ruger, 375Ruger or 338WM, 308 or 270, 243, 223" -- Conserving creation, hunting the harvest. | |||
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Yes but once you get the supermodel in line it's kind of sweet  Regards, Chuck "There's a saying in prize fighting, everyone's got a plan until they get hit" Michael Douglas "The Ghost And The Darkness" | |||
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quote: Originally posted by DGR Shooter: For all practical purposes there is very little difference between the A2 and the Jeffery in terms of ballistic capabilities. Both, along with the .505 Gibbs and R.I.P.'s .500 Mbogo can drive a 600 gr. bullet to 2500fps, more or less. The Jeffery is a slightly bigger case that when loaded to similar pressures, will equal or exceed the A2, but not by enough to really be meaningful,IMO. To me the real difference comes down ease of ownership and reliability. I've owned two Jeffery's that we're both plagued by feeding problems, brass of varying quality and shoulder angles ( Jeffery vs. Schuler ). I now own an A2 that feeds perfectly, and is a dream to load for and shoot. I kinda' tend to think of the Jeffery as a high maintenance supermodel, and the A2 as the really hot girl next door Yes but once you get the supermodel in line it's kind of sweet Regards, Chuck "There's a saying in prize fighting, everyone's got a plan until they get hit" Michael Douglas "The Ghost And The Darkness" I don't doubt that for a minute  But, unfortunately for me, six years, two rifles, and four gunsmiths later, I had to bow out gracefully and admit that I just couldn't keep up with her rock n' roll lifestyle  | |||
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It took me three gunsmiths and a year to get it functioning perfectly. If I had known that, I'd have gone with the 500 A2. But now my 500 Jeffery's kinda sweet.   Regards, Chuck "There's a saying in prize fighting, everyone's got a plan until they get hit" Michael Douglas "The Ghost And The Darkness" | |||
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NICE  | |||
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I own both and the 500a2 is beyond a doubt the best bang for the buck there is. Just expand a .460 wby case to .50 and load a bullet.You don't even need to drop the powder charge. You just have to love big belted cases for ease of fire forming. The Jeffery has some nostalgia value, but it's a beast to get to feed properly. I can get a 500a2 to feed in minutes. It's by far the best of the 500's.just my opinion!-Rob Never underestimate the power of stupid people in large numbers to do incredibly stupid things- AH (1941)- Harry Reid (aka Smeagle) 2012 Nothing Up my sleeves but never without a plan and never ever without a surprise! | |||
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Rob- The reasons why I want a .500 Jeffery is that there are now factory rifles made from blaser,sako and the CZ. (I want to keep my .460wby as it is) and buy a new rifle. And the best part of all is that norma here in sweden now make and sell cases for the .500 Jeffe.. what can be more easy for me? How hard have you load your 500 jeffes ?? have you done any max loads for them? I remeber you got 2600 fps with a 570 grainer in your 500 a-Square.. but you have a 27" barrel on that one? Well thanks for all the info again. //Overkill | |||
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I understand your reasoning! With good brass (Norma) and in a modern steel CZ you can run the Jeffery to 60-65kpsi. Same pressure as the 500a2. When cases stick your done. Max velocity will depend on your ballet length. Never underestimate the power of stupid people in large numbers to do incredibly stupid things- AH (1941)- Harry Reid (aka Smeagle) 2012 Nothing Up my sleeves but never without a plan and never ever without a surprise! | |||
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What does that "cases stick" means? Sorry for my bad English. Do you think that you can run the blaser r8 to 60-65kpsi? //Overkill | |||
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the pressure is high sufficiently high, that the cases become difficult to remover from the chamber. | |||
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If you get to that point, best to drop the powder by a grain or two. Regards, Chuck "There's a saying in prize fighting, everyone's got a plan until they get hit" Michael Douglas "The Ghost And The Darkness" | |||
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Overkill From Sweden, http://forums.accuratereloadin...061021991#7061021991 It must be about the brass quality only now? Norma makes the brass for the 460 Weatherby that most use for the 500 A-Square. That said, I have not sectioned or studied the Norma brass in 500 Jeffery. Why don't you do it for us and post a picture of the result? My guess is that Norma makes it as strong as the Weatherby brass, so brass is not an issue, nor is bolt thrust significantly different between the 500 Jeffery and 500 A-Square at same high pressures. Not enough to matter. I do not have a 500 Jeffery, nor want one. Below still applies:
A similar, very small advantage goes to the 500 Jeffery over the 500 A2, however you load it. Getting an extra few fps with the 500 Jeffery is hardly worth the hassle, when the 500 A2 (or 500 Mbogo) is so much more reliable and only 25 to 50 fps slower. But if you are in love with the 500 Jeffery idea, go for it! Then tell us all about it. Good luck. | |||
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Yup. These days, the best days in the history of rifles and shooting, it's all about the action and the brass in these calibers, and not the calibers per se. Mike Wilderness is my cathedral, and hunting is my prayer. | |||
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Exactly. IMHO, this picture is like Norma or Lapua-made brass in a CZ rifle:  Surely Overkill from Sweden can find happiness somehow! | |||
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that ammo has no jacket...  | |||
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The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Big Bores Again 500 jeffery v/s .500 asquare
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