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Thread: 9.3X72R data?

  1. #1
    Boolit Buddy David todd's Avatar
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    9.3X72R data?

    Anybody shooting this old cartridge?
    I am having aa heckuva time finding any data other than Cartridgees of the World, and there is not much there.
    Sellier & Bellot sells factory ammo, with a 195 grain bullet, but I want too shoot cast bullets in my drilling.
    Another issue is actually utilizing the loading dies I have at my disposal, where are 9.3X57.
    Even with the expander right out of the die, the 9.3X72R brass barely grabs the 270 grain Speer bullets I am working with .
    The leads me to believe that the 9.3X57 brass is much thicker due too the higher pressure cartridge.
    it woukd be greatly appreciated if anybody that has any info at all about this cartridge would let me know
    The rifle shoots wonderfully with roll crimped 16 gauge ammo , but I will be shooting brass cases and black with it in the future, and if I can get the results I am looking for, will use BP in the rifle as well.
    A friend is shipping me a 195 grain mold too borrow, but in the meantime I will keep experimenting with what I have
    David
    The factory load is on the right, 270 grain Speer on the left
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    scopes and bags are cool, but palm rests 'n' irons RULE!

  2. #2
    Boolit Grand Master In Remembrance
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    Regards
    John

  3. #3
    Boolit Buddy David todd's Avatar
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    Quote Originally Posted by John Boy View Post
    I already read most of what I could find on google, John Boy, but there is not much as far as actual data on it.
    There is one link to Cast Boolits however that is very helpful!
    David
    Last edited by David todd; 10-21-2021 at 02:46 PM.
    scopes and bags are cool, but palm rests 'n' irons RULE!

  4. #4
    Boolit Buddy
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    David, I load my Ruger#1 9.3x74R with a 275 gr RFN GC over 22 gr Unique and Rem 9 1/2 primers and get about 1675 fps. The chrono has become suspect though so I'm not sure of it's accuracy. It will shoot minute of deer. I would assume loading data for the 74 would work for the 72 at the starting and mid-range loads.

    Shelly
    "EXPERT= Ex is a has been, spurt is a drip under pressure" Unknown

  5. #5
    Boolit Buddy David todd's Avatar
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    Quote Originally Posted by shell70634 View Post
    David, I load my Ruger#1 9.3x74R with a 275 gr RFN GC over 22 gr Unique and Rem 9 1/2 primers and get about 1675 fps. The chrono has become suspect though so I'm not sure of it's accuracy. It will shoot minute of deer. I would assume loading data for the 74 would work for the 72 at the starting and mid-range loads.

    Shelly
    Shelly,the 9.3X57 dies I am using at the moment seem to be working well enough, but I have a friend who also has a 9.3X74R and I am going to try neck sizing with them, because II think the 9.3X57 brass is thicker, and II need to crimp the cases on the 72 brass for some neck tension. As soon as my mold comes however, I will dispense with the jacketed bullets and use cast, so neck tension will be a non issue!
    David
    scopes and bags are cool, but palm rests 'n' irons RULE!

  6. #6
    Boolit Master
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    Keep in mind that the 9.3x72 was loaded to much lower pressures than the more modern 9.3x74. IIRC the 9.3x72 had a slightly smaller bore diameter than the 9.3x74 and later 9.3 cartridges. I would slug the barrel before using the .366 diameter jacketed bullets. I would also suggest investing in a correct set of dies as that should make loading very much easier.

    Good luck and post some pictures.
    BIG OR SMALL I LIKE THEM ALL, 577 TO 22 HORNET.

  7. #7
    Boolit Buddy David todd's Avatar
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    Quote Originally Posted by elk hunter View Post
    Keep in mind that the 9.3x72 was loaded to much lower pressures than the more modern 9.3x74. IIRC the 9.3x72 had a slightly smaller bore diameter than the 9.3x74 and later 9.3 cartridges. I would slug the barrel before using the .366 diameter jacketed bullets. I would also suggest investing in a correct set of dies as that should make loading very much easier.

    Good luck and post some pictures.
    Fully understand the differences inn the two cartridges for sure!
    Until I can source some loading dies in Canada I will make do with the 9.3X57 dies, but as soon as I get my mold I will not have to resize brass and I have a universal seating die as well. For the time being , a slight crimp works well.
    David
    scopes and bags are cool, but palm rests 'n' irons RULE!

  8. #8
    Boolit Buddy David todd's Avatar
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    Quote Originally Posted by elk hunter View Post
    Keep in mind that the 9.3x72 was loaded to much lower pressures than the more modern 9.3x74. IIRC the 9.3x72 had a slightly smaller bore diameter than the 9.3x74 and later 9.3 cartridges. I would slug the barrel before using the .366 diameter jacketed bullets. I would also suggest investing in a correct set of dies as that should make loading very much easier.

    Good luck and post some pictures.
    elk hunter the jacketed bullets in my factory Sellior and Bellot are .365, my cast bullets are sized to .366, and the jacketed Speers are also .366. There are absolutely no pressure signs with the Speers, when I open the action and tip up the muzzle the case falls right out, and there are no case stretching signs and the primer pockets are still tight as well.
    The 9.3X72 Sauer however used a slightly different bullet than what RWS and Sellior and Belllot are loading inn their factory cases.
    I am going to try out the cast bullets tomorrow
    scopes and bags are cool, but palm rests 'n' irons RULE!

  9. #9
    Boolit Master
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    Did you slug the bore? An immense # of 9.3 X 72R drillings are very undersized and a LOT of 9.3 caliber shooters shoot .358 bullets, me included in my 9.3 X 75R Nimrod. It was German thing back when that a tight throat and a tight bore/groove shot better, AND, there was three popular iterations of the same cartridge.

    Have you looked at The German Gun Collector's site? There's a pile of 9.3 X72R shooters there. You might have to join and PM someone but the info is out there.

    It is a low pressure cartridge, shooting an approximately 200 gr. bullet at approx. 2000 fps. Good cartridge and one of the most popular of its day.
    "In general, the art of government is to take as much money as possible from one class of citizens and give it to another class of citizens" Voltaire'

    The common virtue of capitalism is the sharing of equal opportunity. The common vice of socialism is the equal sharing of misery

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  10. #10
    Boolit Buddy David todd's Avatar
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    Quote Originally Posted by sharps4590 View Post
    Did you slug the bore? An immense # of 9.3 X 72R drillings are very undersized and a LOT of 9.3 caliber shooters shoot .358 bullets, me included in my 9.3 X 75R Nimrod. It was German thing back when that a tight throat and a tight bore/groove shot better, AND, there was three popular iterations of the same cartridge.

    Have you looked at The German Gun Collector's site? There's a pile of 9.3 X72R shooters there. You might have to join and PM someone but the info is out there.

    It is a low pressure cartridge, shooting an approximately 200 gr. bullet at approx. 2000 fps. Good cartridge and one of the most popular of its day.
    I slugged the bore last night and also scoped it, .364 and .358 grooves and lands, a bit rough for sure, but the 100 yard accuracy is quite suitable for deer IMO.
    I have a Lee style .366 sizing bushing from NOE, and my friend loaded my a brand new NOE 4 cavity mold, so I am pretty stoked about getting this rifle really working well, the cast bullets fit the cases much better than the jacketed Speers I tried.
    David
    scopes and bags are cool, but palm rests 'n' irons RULE!

  11. #11
    Boolit Master smkummer's Avatar
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    It’s been over 10 years but I trimmed 9.3X82 brass down to 9.3X80 for a friends German drilling. I just used 38/55 low pressure data to load for it and it worked. It was a cast Lyman bullet that shot high but remarkably accurate. I don’t have proper dies for it but used other dies to flare and crimp. The empty cases always went in and extracted fine. It was a good cast bullet gun and the markings under the barrel were for nitro and a jacketed bullet.

  12. #12
    Boolit Master
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    The 9.3 X 72R Sauer was also a slightly bottlenecked case. Doesn't that just go to show some things have been the same all along?

    David, sounds as if you're well on the way to making it work. I think the 38-55 data would be ok if a fella does like everything else and starts low and works up. I still have a box of 9.3 X 72R cases "just in case" I ever acquire one. I have a 9.3 X 57R that is basically the same case only shorter. That darn thing is scary accurate once I got a BP load worked up. It's a pre-nitro single shot on a Jones underlever that must have been made for a lady or a guy some shorter than me....and I ain't very tall!!

    I'm using 9.3 X 74R dies for my 9.3 X 75R Nimrod and....they work, just barely. Basically I'm just neck sizing the cases. I had to jump through a lot of hoops to make 9.3 X 82R brass work.
    "In general, the art of government is to take as much money as possible from one class of citizens and give it to another class of citizens" Voltaire'

    The common virtue of capitalism is the sharing of equal opportunity. The common vice of socialism is the equal sharing of misery

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  13. #13
    Boolit Buddy David todd's Avatar
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    Quote Originally Posted by sharps4590 View Post
    The 9.3 X 72R Sauer was also a slightly bottlenecked case. Doesn't that just go to show some things have been the same all along?

    David, sounds as if you're well on the way to making it work. I think the 38-55 data would be ok if a fella does like everything else and starts low and works up. I still have a box of 9.3 X 72R cases "just in case" I ever acquire one. I have a 9.3 X 57R that is basically the same case only shorter. That darn thing is scary accurate once I got a BP load worked up. It's a pre-nitro single shot on a Jones underlever that must have been made for a lady or a guy some shorter than me....and I ain't very tall!!

    I'm using 9.3 X 74R dies for my 9.3 X 75R Nimrod and....they work, just barely. Basically I'm just neck sizing the cases. I had to jump through a lot of hoops to make 9.3 X 82R brass work.
    Loaded some cast last night for it, can't wait to try them out!
    Far right is a 193 factory S&B, left of that is a 270 grain Speer, and the 285 grain GC bullets
    David
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    scopes and bags are cool, but palm rests 'n' irons RULE!

  14. #14
    Boolit Master
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    Well done sir!! As long as they shoot to the sights or, if the sights have some adjustment in them. I've had to make tall front sights on more than a couple occasions.

    Eh...just for grins and giggles, here's my drillings.

    Click image for larger version. 

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    "In general, the art of government is to take as much money as possible from one class of citizens and give it to another class of citizens" Voltaire'

    The common virtue of capitalism is the sharing of equal opportunity. The common vice of socialism is the equal sharing of misery

    NRA Benefactor 2008

  15. #15
    Boolit Buddy David todd's Avatar
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    Shot the cast GC's this morning, with a center hold two ran about 5" low but right beside each other, so I can adjust for that on a white tail at 100 yards!
    headed out for a five day deer/elk hunt tomorrow and it is coming along for partridge and white tail!
    David
    scopes and bags are cool, but palm rests 'n' irons RULE!

  16. #16
    Boolit Buddy David todd's Avatar
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    Quote Originally Posted by sharps4590 View Post
    Well done sir!! As long as they shoot to the sights or, if the sights have some adjustment in them. I've had to make tall front sights on more than a couple occasions.

    Eh...just for grins and giggles, here's my drillings.

    Click image for larger version. 

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    Beautiful guns for sure!
    David
    scopes and bags are cool, but palm rests 'n' irons RULE!

  17. #17
    Boolit Buddy David todd's Avatar
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    Well, lucky me!
    A friend of mine just bought 2 1/2 boxes of 9.3X72R RWS ammo at a gun show!
    He picked it up for a fraction of what the brass itself would cost me to get it across the border!
    David
    scopes and bags are cool, but palm rests 'n' irons RULE!

  18. #18
    Boolit Master
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    Can't beat that with a stick!!!
    "In general, the art of government is to take as much money as possible from one class of citizens and give it to another class of citizens" Voltaire'

    The common virtue of capitalism is the sharing of equal opportunity. The common vice of socialism is the equal sharing of misery

    NRA Benefactor 2008

  19. #19
    Boolit Buddy

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    The RWS ammo is no longer produced for this cartridge- too bad
    I have been using the S&B factory ammo for deer during the past 4 years. 3 deer down. Began to load and test handloads- mostly Hawk JSP bullets .365 diameter. To tight in my chamber. Will now test .360" diameter Hawk.
    Next step is to size my cast boolits from an Accurate mold.
    Using a Merkel O/U 16b/9.3X72R with a Schmidt & Bender 1.5-6X scope.
    Jim

  20. #20
    Boolit Buddy David todd's Avatar
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    Quote Originally Posted by ohiochuck View Post
    The RWS ammo is no longer produced for this cartridge- too bad
    I have been using the S&B factory ammo for deer during the past 4 years. 3 deer down. Began to load and test handloads- mostly Hawk JSP bullets .365 diameter. To tight in my chamber. Will now test .360" diameter Hawk.
    Next step is to size my cast boolits from an Accurate mold.
    Using a Merkel O/U 16b/9.3X72R with a Schmidt & Bender 1.5-6X scope.
    Jim
    Jim I have acquired an NOE mold and sizing bushings, and the bullets I have used that are cast work super, although they are not from this particular mold. I didn't get a chance at a deer with the 9.3 barrel but have shot a mess of ruffed grouse, pheasants and sharptailed grouse so far with the 16 gauge barrels.
    David
    scopes and bags are cool, but palm rests 'n' irons RULE!

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check