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No, why wreck the gun?

No, the 9.3 dies will not size the ENTIRE case for the .358 bullet you will need. And the recut chamber will really wear out the brass.

Now for the 9x72R do you have the Sauer variety or the Standard variety?

Stay with the 9mm chamber. AND 35 Remington bullets (projectiles) are much cheaper. And for FUN you can shoot light 125 grain 357 pistol bullets.

For reloading, all you have to do is size the virgin 9.3x72R brass in a 9x72R full length sizing die and load normally from there, not an issue.


http://www.jgsales.com/product_info.php/...cts_id/4402?SID
Mike

Last edited by skeettx; 09/04/11 03:56 PM.

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Sounds like skeettx has been down this path before.

Also, it doesn't look like a standard 9.3x72R reamer will fully cleanup the Sauer chamber, based on the drawings.

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Chuck;
If you look closely at those two sets of dimensions you will see a 9.3x72R reamer virtually will not touch a 9.3x72R Sauer chamber. The Sauer round has the head dia of a .30-06 while the regular 9.3x72R has a head slightly smaller than a .30-30.
Neck dia of the Sauer round is .004 bigger than the regular one. Everything in between is larger on the Sauer case.
Chamber dimensions of the Sauer round are actually much closer to the 9.3x74R round, but it is not loaded to the same intensity.
I do not think it has been established though that this gun has the Sauer chamber, but likely the 9x72R which is based on the regular case, not the Sauer one.


Miller/TN
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Gat a good casting of the chamber, a solid steel knockout rod makes a big difference.

The chamber casting shows that it is a 9.3 Sauer.

9.3 Sauer are almost impossible to come by so that it is inpractial to think I can find a few to reload.

I spoke to an old German gunsmith yesterday and he told me that many of the 9.3x72R Sauers were "normalized" to the standard 9.3x72R in the old country.

I don't think that opening up the chamber to standard is going to "reck a good gun". It seems to me that it is the best option, all things considered.

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Jerry;
I fail to undertand this last post. How can you "Open Up" the Sauer chamber to the standard one when the Sauer chamber is larger to start than the standard??
Were they speaking of opening it to the 9.3x74R round. Not sure I would want to do that, that round is close to the .375 Mag in its loading intensity.
I havent checked out the dimensions but that might be a possible source of brass for the Sauer round.
Note that J P Sauer & Sohn probably made a lot more guns in the standard 9.3x72R chambering than they did their own proprietary one.
The Standard 9.3x72R round was developed in the black powder era & saw long service. I can't really confirm this but have read that later Smokeless powder loads of higher intensity were purposely made so they would not chamber in the old black powder proofed guns. Seems this was said to have been done by using a thicker rim on the Smokeless shells.
The black powder 9.3x72R was in about the same class as a BP .38-55 while th smokeless version is close to a .35 Rem.


Miller/TN
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Jerry
Your gun, do what you want to do.
As for me, I would make 9.3 Sauer ammo.
What bullet diameter do you plan to use?
Mike


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It looks like the 9.3 x 74R case might be useable to make cases for the Sauer. A little lathe work on the rim and some sizing and trimming. If it can be done, 9.3 x 74R Hornady brass is available in stock from Midway for $27/20 cases.

Last edited by Chuck H; 09/06/11 06:50 PM.
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Miller is right on all counts (as usual). When I have more time Ill try to help if you still need it.

Chuck, the 9.3x74R will swell or rupture when fired in the larger 9.3 chamber. The head is 12.1 mm vs 11.8 for the 74R, and wont allow fire-formed cases to expand, so they may rupture-especially cheaper brass. Not sure, what lathe work is required on the rim? (I couldnt read your book). Jerry, make a drawing of all dimensions of the chamber cast and report on them. It might make more sense that way.

Please do slug the bore and give us the result so you can move forward. . Be careful with this, like the 74R, the 9.3 Sauer is a .375 H&H class round.

Best,

C.

Last edited by C. Kofoed; 09/06/11 09:21 PM.
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I've got a bunch of Cerrosafe(as in pounds) and if anyone wants some to do chamber casts I'll sell it cheap. PM me with how much you need. JW

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No, no, no. Don't even get close to it with a reamer. I use brass for a 9.3X72R with a 9.3X74R headstamp very often with no issues. They were acquired from Buffalo Arms and I ask not how they were converted. But, but they have to be full length sized very closely to fit those tight chambers. We need your base, rim, etc. dimensions. I think all the answers given with the "72 D" stamp, which had a slightly wider base as 11.0mm and a rim that seems to have varied between 12.20mm to 12.50mm depending on the cartridge maker. The case has more of a taper than the average ole 9.3X72R. I see this tight chamber issue quite often due to all the variations. Just closely resize the brass full length and note those for this drilling only. Many times the same issue is seen in the 8.15X46 1/2 R target arms.

Kind Regards,


Raimey
rse

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