The Accurate Reloading Forums THE ACCURATE RELOADING.COM FORUMS Rifles Medium Bore Rifles 9.3x70 Expert Magnum PICTURES ADDED!!!Go | New | Find | Notify | Tools | Reply | |
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"Expert" is the trade name for ammunition reloaded by Reimer Johannsen but for the 9,3x70 Magnum he gave up to produce his own brass. Today he is using .404 brass from Norma. His standard load is either 250grain A-Frame / 300grain A-Frame or Woodleigh SN/Solid in 300 grain but you can also order 320 grain. Powder is R907 from RWS and he uses Federal Magnum primers. If you want to know more about it send me a PM | |||
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Dave Kiff will do the reamer. Redding will do the dies. After this first batch of brass I will make more from 404 Brass. It is an easy form job. LD  | |||
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Does this batch have the correct headstamp? | |||
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Nice thread. I got my brass from Horneber (Expert). But soon changed to Norma 404. Rel dies from Lee, they work fine for me and cost only about 70€. Action P17 with rebored barrel. Reamer from Clymer. If you are interested in more information just drop me a mail. leupoldo | |||
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It appears they no longer form this brass. Below is thier list of calibers.
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I'm still waiting for them to clear customs. I may save those for travel time. I believe Jamison will eventually make basic 404 brass available. It will be a while, he has bit off way too much too soon. Anyway, when the basic 404 brass is available (from whatever source), I'll get a bunter made for the 9.3 x 70 marking. Maybe Dieter doesn't need his any more? LD | |||
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Sounds good, and please keep me up on it. Ithink this is my next project. | |||
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 Take a look at my other post on the 9.3. I just put together this rifle with a 375RUM necked down to 9.3mm. This rifle shoots 3150fps with a 250 nosler balistic tip and IMR4350. This is just plain a great rifle. I'd be happy to share data with anyone who wants to. My Advice go for it. Brad | |||
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That is kind of weird. I didnt see 9.3x64 listed on that Horneber list posted above, but I pretty sure that Huntington has such brass for sale. I read an article online about the 9.3x70 seems like a really interesting round. Let me see if I can dig it up. You will have to forgive me for lack of computers skills.  | |||
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 Here we see some 9,3 x 70 Magnum Brass by EXPERT.  Here is some 9,3 x 70 brass formed from 404J brass by my friend Gunnar.  Factory brass on the left, formed on the right. | |||
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Lawndart, the only thing I can't resist is temptation!!!! Those pics are making me rethink my fidellity to my new 9.3x64!!! | |||
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Damn! Those look nice LD.   Doug Humbarger NRA Life member Tonkin Gulf Yacht Club 72'73. Yankee Station Try to look unimportant. Your enemy might be low on ammo. | |||
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Brilliant ,just wonderfull , those brass are looking, and what a great cartridge itis! I hope that it will finally be used more than it has been . It deserves it. | |||
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Congratulation Mr lawndart  I am glad you found what you wanted.....  Looking good DRSS: HQ Scandinavia. Chapters in Sweden & Norway | |||
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I am a happy camper  .I will order a reamer next week, and talk to Hornady and Redding about reloading dies. I think I will have an intermediate form die for bringing the 404J on down. I will mark my barrel in German as 9,3 x 70mm and in English as 9.3/404J. The Expert Cases are about $2.00 each with shipping and customs. The Norma brass looks like it will hold up better over time, but the Expert brass is just fine. After the Norma brasss is necked down it would be a good idea to anneal it. I think this cartridge is about the maximum practical for the 9,3 bore size. Anything bigger and we are just burning powder to make more recoil and wear out the barrel faster. Now I must find a 9,3 x 57 reamer and save for some more brass. I wish to thank all the people on this thread who have helped me with this quest. LD | |||
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Well, any updates for the rifle? | |||
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Well, I now own a grinder, and hope to have a mill and lathe up and running by the spring time. I will build it myself then. I will use a Sako style stock for comfort and recoil control. 25" barrel. I should slap the 300 RUM barrel back on for a bit. If it shoots It might be fun to make it a switch barrel rig. LD | |||
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Huntingtons does carry 9.3 x 64 brass made by Horneber. Interestingly, Horneber marks it HDS 9.3 x 64 on the base. I have both the Horneber and RWS brass in 9.3 x 64. Both brands look fine, but the RWS looks finer. LD | |||
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Thanks lawndart. On an aside, if you switch barrel it, would the extractor be big enough? .535 for the RUM case and .545(est.) for the 9.3 Expert case. It seems miniscule in number comparison, however the extractor thins greatly at the edge. I'm probably overthinking this. | |||
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Extractor should work fine. Many 404J conversions have been done. LD | |||
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Cool! Smackdown AND longrange performance! | |||
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Lawndart, congraulations! You should order some 325 grain Stewart Hi Performers for knocking Buffalo's! Husky | |||
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I will. Those would provide some exceptional penetration. I will bring the 9.3 x 66 for moose. lawndart | |||
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Anymore updates? | |||
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The receiver is trued and ready to go. I will get the reamer and dies at the end of January (I need more money for projects!!! Do you hear me Santa? I SAID, I need more MONEY for projects!!!!). After that it is off to Montana for a barrel. First I have to put together the damp box for rust bluing. Off to the cash 'n carry for 3/4" plywood and some plexiglass for the port hole. Firster I better finish my charts tonight. No chart, no money. I hope medicare doesn't go completely bankrupt before I get these rifles done  . | |||
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Keep up the good work and "You must endeavour to persevere!" | |||
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I plead ignorance, but isn't this cartridge a .366RUM? Rich Lawndart...see you at the Nampa show Saturday? | |||
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A much more refined and slicker feeding .366 RUM! | |||
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Any more pictures or updates?? | |||
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Hi, I'm just posting this picture for a guy whose computer system at work won't let him get any attachments or URL references of this nature. You have to love it when a military e-mail system has a firearms filter  . | |||
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Thread kind of fell off, what happened? Going to do a 358 Norma on a Sauer 80, and 8mm Remington Magnumon a Weatherby MKV this Spring. Was thinking about doing a 9.3x64 on some kind of MKV if I can find a 30-06 bolt faced full sized Mark V. Was interested in how the 9.3x70 worked out. Might take a 375 CZ 550 and do a 9.3x70 on it. What do you think? | |||
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Not to completely bring back the past, but I am looking at this still as my next rifle. Was going to be a 376 Steyr on the M1999 SA, but I want more range with that power. Any new developments on this old calibre | |||
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This is quite a caliber. It is over bore, that is no sin these days. They are easy to make by converting a Mauser 1898, or a Winchester Model 70 classic. If you can find one in 300 RUM, that is an easy way to go. The "standard" magnum size will work with a little more 'er work. Tom in Cody came up with a more efficient cartridge. It is the 375 Ruger necked down to 9.3 and trimmed to 2.500". Just re-barrel your Ruger rifle, and save the old barrel. | |||
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my problem is I need the nosalgia of the old with the performance of the new components...the 70mm is for me right now. | |||
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OR I just ordered a B.Bradshaw single shot in 9.3x74R. Hope to load it a lot hotter than the double rifle loads and no issues with headstamps and brass. SSR | |||
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Sounds nice....I was thinking a Stiller actioned long range rig BUT with a wood stock of course! It needs a 27 inch tube 5130 Lothar Wather. | |||
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It's an interesting idea in concept, but I found the recoil in a light weight single shot objectionable. KB ~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~ ~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~ | |||
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I shot a Bowen 500 Nitro on No 1 action...really was not that bad. Wish he still made those. | |||
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Anyone have a properly head stamped loaded round? I want to purchase. | |||
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In looking at DWM cartridges 1896-1956 book they list Huelse 9.3x70, case #569 & the shown cartridge has no rim Hope this helps m4220 | |||
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