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I load for a friend, and in his 24-inch barreled rifle Woodleigh softs backed by 111-grains of RL-15 average 2316 fps and Woodleigh solids backed by 108-grains of RL-15 average 2303 fps as measured 15-feet from the muzzle.
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Schüler always built his riﬂes on a 98 Standard Action with a vertical magazine and a spring clip which held the cartridge as it left the magazine before the bolt picked up the cartridge and pushed it into the chambers. In doing so we have to submit the cartridge to be entered into the CIP tables. Above are scans from the KYNAMCO booklet. There has long been argument over the origins of the .500 Jeffery cartridge and in particular whether it was designed by Jeffery, or adopted by him from the 12.7 x 70 Schüler, or whether Schüler adopted Jeffery's design. 0000003368 00000 n
| Mon - Fri | 8am to 5pm CST. Only about 200 of these were made. Shipping Delay - Currently 7 - 10 business days delayed. All Rights Reserved. However, K98/06 also demonstrates that the Jeffery proﬁle falls within the Schüler proﬁle except very marginally for a short portion of the neck transition, but, given normal manufacturing tolerances, the Jeffery cartridge will not cause hard chambering problems in a Schuler chambered riﬂe, and also does not compromise the headspacing of the Schuler riﬂe, since the front of the Jeffery cone coincides sufﬁciently well with the front third of the Schuler proﬁle to cause no ignition or safety/pressure problems, as the fireforming expansion that will occur is minimal. The question of the manufacturing provenance of surviving original cartridges is also confusing.
20/577 ALEXANDER HENRY NITRO FOR BLACK POWDER. For DJ (Casey) Lewis, on PMP brass. From www.realguns.com it states: "The 500 Jeffery made its original appearance in the mid 1920's as the August Schüler Company's 12,7 x 70mm Schuler. %PDF-1.3
Only about 200 of these were made. Buy 500 Nitro and 500 Jeffery Caliber (.510) Bullets Bullets Reloading bullets on sale online at discount prices in our reloading supplies department.
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Experienced shooters will recognize our top brand merchandise at a great value, and new shooters will find everything they need to get involved in an exciting sport. Proudly serving our customers for over 40 years, Midsouth Shooters can supply you with your pistol and rifle ammunition, as well as all of your shooting and reloading supplies. Cordite, due to its stranded form, was invariably loaded into un—necked cases, over-wadded with a glaze board disc of case body inside diameter to retain the strands at the base of the case and the case was then ﬁnally necked over the wad for bulleting. Cartridge gauges will be available from Kynamco Limited. What started as a small dream has become a multi-million dollar international business selling ammunition, reloading supplies and accessories.
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As with a number of cartridges of German origin being offered between WWI and WWII, the round was renamed by the British firearm firm Jeffery as the .500 Jeffery to make the chamber more palatable to British sportsmen", Headstamp made by OPM in South Africa for the Big Bore Association of South Africa.
Through extensive negotiations, VA Silent Arsenal acquired Bertram Brass USA to fulfill current market needs and to bridge some gaps. This dual use of the basic case probably explains the lack of any complete calibre designation (such as ".500 Schüler" or ".500 Jeffery") in the headstamp; both ﬁrms promoted their respective versions as a ".500" – Schüler did not use the metric designation in his promotion of the calibre, this appear to have been adopted by RWS in the early 1940s. Buy 500 jefferey Rifle Brass for Reloading at Midsouth Prices. Please click HERE for more information. Although it may have been expedient (and cheaper) for him to import part ﬁnished brass using Schüler's base dimensions from Gecado, the use of a Kynoch bullet and his own sloping shoulder proﬁle was very probably done to intentionally prevent Schuler cartridges being used in Jeffery riﬂes. When sportsmen ask their riﬂemakers for a large bolt action riﬂe, the 500 Jeffery is always the top of the list. The .500 Jeffery came to light around 1920, by all accounts, but came from Germany, where it was known as the 12.7x70mm Schuler, or the .500 Schuler. 0000001586 00000 n
From a commercial point of view the 500 Jeffery cartridge to the correct original Kynoch English dimensions will ﬁt the few original Schüler riﬂes, the original Jeffery riﬂes and the varying non-standard size chambers found in a few modern riﬂes made in the last 7 to 8 years. Kynamco Drawing K98/06 gives a detailed overlaid comparison of the shoulder proﬁles of the .500 Jeffery, from the Kynoch drawing, and the 12.7 x 70 Schuler shoulder is 0.8 mm larger in diameter than the Jeffery case at the mid-point of the Jeffery neck cone. It relied on the extractor springing over the bullet head and a recess was cut into the chamber face to accept this. The Romey proposal is in essence a compromise wildcat cartridge that does not fulﬁl the requirements for Jeffery chambered riﬂes, though it may be usable in Schüler riﬂes. It is a common place error in the literature to describe the two cartridges as identical, but this is clearly not so when the original Kynoch Drawing BK82/ 132, dated August 21, 1928, of the .500 Jeffery is compared with the RWS Drawing M466, dated 18/7/40, of the Schuler .500/ 12.7 x 70. 0000060114 00000 n
It can be seen that there is a significant difference in the KYNAMCO version, especially the groove thickness: Copyright © 2013. Hand stamped case by Murray McNichol The following is from a booklet by KYNAMCO in 1998 regarding the 500 Jeffery cartridge.
Please look for Woodleigh bullets to be added to this site. 0000012164 00000 n
500 Nitro and 500 Jeffery Caliber (.510) Bullets Reloading Bullets Here you can find our selection of expanding and solid reloading bullets for the .500 Nitro and .500 Jeffrey calibers. Drawings of cartridge and chamber will be sent to all the major reamer manufacturers. This is known to cause chambering problems in original Jeffery riﬂes when attempting to feed Schuler dimensioned cases; although the Schüler cartridge may be ﬁred, the bolt in many cases has to be forced to shut, and extraction may be hard. It will also ﬁt and chamber safely in the Wolf "Improved" riﬂes.
Whether or not he was the designer of the basic case, documentary evidence seems to point towards Jeffery being the ﬁrst to market his riﬂe in this calibre, since the surviving records of the company (now held by Messrs Holland & Holland in London) show the ﬁrst .500 Jeffery riﬂe to have been sold in 1927. However, if it is the CIP's preference only to adopt one of these cartridges due to their similarities, it would seem logical that it should be the Jeffery proﬁle as depicted in Kynoch Drawing BK82/ 132, as it alone may be used safely in both chamberings. For Email Specials, Giveaways, Newsletters, and More, Enter your email address here! W.J. These are compared with a modern Kynoch (Kynamco) .500 Jeffery (with a nominal 25°, as measured 30° on specimens) and a Romey .500 which has a 68° cone angle as measured on specimens. There is no doubt that the latter is a .500 Schüler, manufactured by G C Dornheirn of Suhl (Gecado), and loaded with 118gr Smokeless NC Flake powder. From the technical/dimensional standpoint therefore, it can be seen that the "interchangeability" of these two cartridges is in fact one way; the .500 Jeffery may be readily chambered and safely fired in both Jeffery and Schuler rifle, but the Schuler will not chamber in the Jeffery, particularly in a minimum Jeffery chamber. 0000001238 00000 n
CASE FOR CIP ADOPTION OF KYNOCH DRAWING BK82/132,
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This also indicates independent design by Jeffery and Schuler and intentional differences in the Jeffery cartridge. 0000000875 00000 n
Check out our current selection of 500 Jeffery Rifle Brass Below! 0000000785 00000 n
It is however an unnecessary further complication to an already complex problem. The ﬁrst documented reference to the Schuler cartridge is recorded(1) as a letter of 18.11.28 offering it to a customer on New York. (1) Techel, H. "Die Btichsenmacherfamilie Schuler in Suhl" Patronensammler-Vereinigung e.V., Sonderdruck Mitteilungblatt 1990 The same drawing also illustrates the hybrid proﬁle proposed by Romey in 1997. This explains the existence of the Kynoch drawing as a loading drawing for the case giving ﬁnal external dimensions, and a detailed manufacturing drawing of the bullet, which would have been of Kynoch manufacture; German solid bullets of the era were very thin jacketed and would not have been acceptable to Jeffery or their customers.
Reloading Brass. I have scanned the cartridges in question in detail for comparison. .500 Jeffery *Recommend crimping the case mouth into the front cannelure groove. The differences in the shoulder position and shoulder angle are signiﬁcant, and are highlighted in Kynamco Drawing K98/06. The lore of the calibre has spanned 60 years and is again enjoying a resurgence of popularity.
The shooting public do not want a 12.7 x 70 Schüler or a hybrid wildcat - they want a .500 Jeffery, to the original dimensional and ballistic speciﬁcations. angle was reduced to assist its entry into the chamber.
*The CIP maximum COAL is 3.468” for this cartridge. We applaud the previous owners for their hard work and look forward to offering great products and service. 0000002879 00000 n
Delayed Shipping - Order Editing - Local Pick-ups – Backorders.
The following is from a booklet by KYNAMCO in 1998 regarding the 500 Jeffery cartridge. No examples are known with a K or KYNOCH headstamp, the only headstamps known (from the pre-WWII era) being an enigmatic ".500" and "x Schuler 500 x GECADO". Chamber reamers and head space gauges to the original Kynoch/Jeffery speciﬁcations are available from Arthur Smith, Arms Restoration Services Tel/Fax 01206 272354. So there will not be a problem with the ammunition not fitting riﬂes in the current marketplace, and there will be no need to recall or alter any riﬂes, although some owners may like their gunsmith to check this for them. There has been an enormous amount of mis-information regarding this cartridge. 0000001433 00000 n
August 21, 1928, AS DEFINITIVE DIMENSIONAL SPECIFICATION With its submission to CIP it will allow owners of both original and new riﬂes to be conﬁdent the ammunition made for this calibre will ﬁt and serve the user as well as the original Jeffery cartridge. 0000038610 00000 n
We will be happy to answer any of your questions and ensure that you have the right supplies and equipment for a day at the range or in the field.
Non—CIP signator countries, e g USA and South Africa are making riﬂes to the original Jeffery dimensions and have to date taken over 5,000 rounds of ammunition and have ordered a further 10,000 rounds for delivery end 1998.
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