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Thread: 9.3x72R load advice needed

  1. #21
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    peter72,

    ONCE MORE, you NEED a chamber cast to see what EXACTLY that the caliber actually IS. = MANY older/antique firearms were rebored/rechambered in the pre-WWI & post-WWI era.

    Btw, because of Jessie at JES, reboring/rechambering to a different caliber is NOT uncommon NOW. = I have & would NOT part with a Model 760 that was once a .30-06 & is now a 9.3x62mm Mauser for dangerous game.

    yours, tex

  2. #22
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    The 9.3x57R is a shorter version of the 9.3x72R the longer case can be trimmed down to 57mm and be resized an reloaded as 9.3x57R.
    If the 9.3x72R fits the chamber it is most likely that the 9.3x57R chamber has been reamed to accept the more common 9.3x72R.

    The 9.3x57R for the m/17 Husqvarna has nothing in common with the 9.3x57 Rimless for the Mauser cylinder action wich is based on 8x57 Mauser.

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  3. #23
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    Quote Originally Posted by BlackpowderSweden View Post
    The 9.3x57R is a shorter version of the 9.3x72R the longer case can be trimmed down to 57mm and be resized an reloaded as 9.3x57R.
    If the 9.3x72R fits the chamber it is most likely that the 9.3x57R chamber has been reamed to accept the more common 9.3x72R.

    The 9.3x57R for the m/17 Husqvarna has nothing in common with the 9.3x57 Rimless for the Mauser cylinder action wich is based on 8x57 Mauser.

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    Thankyou for the excellent explanation.

    Sent from my SM-G955F using Tapatalk

  4. #24
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    http://www.municion.org/9_3/9_3x57R.htm

    But since the 9.3x72R fits the chamber, you probably have a rechambered rifle so your CH4D dies will probably work fine.
    Reading up little about reloading the cartridges, the x57R variant seems to have been basicly a Blackpowder only round at the time of the model 17, later ofcourse they were smokless rounds for sale.
    The 9.3x57R had about 1200Bar the x72R had about 2000Bar
    Be careful not to overload your gun, go mild loads.

  5. #25
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    Quote Originally Posted by BlackpowderSweden View Post
    http://www.municion.org/9_3/9_3x57R.htm

    But since the 9.3x72R fits the chamber, you probably have a rechambered rifle so your CH4D dies will probably work fine.
    Reading up little about reloading the cartridges, the x57R variant seems to have been basicly a Blackpowder only round at the time of the model 17, later ofcourse they were smokless rounds for sale.
    The 9.3x57R had about 1200Bar the x72R had about 2000Bar
    Be careful not to overload your gun, go mild loads.
    Interesting.
    Seeing as I don't know if it's smokeless capable, my intention is to load smokeless at bp pressures.
    My searching tells me bp pressures are at or around 18000 psi.
    I'll be using 3031 equivilant and some data I have from loaddata.com has 17.5gns as a low pressure load.
    But there are some suggestions to start higher so I'm a bit confused as to a safe starting load to be honest.

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  6. #26
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    Peter, sounds like you know what you are talking about! that is great!
    I have a friend hunting with a m/17C 9.3x57R loading with Smokless, way over BP performance without problems.
    Your gun will probably not blow up, but more likely work loose (play) in the hinge pin if you load hot.

  7. #27
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    peter72,

    Inasmuch as Husky never made BP-only firearms after the turn of the 20th Century. I wouldn't worry over much about the safety of the firearm (presuming that it's tight & otherwise in sound condition).

    AFTER you have a chamber-cast & KNOW for sure what cartridge is proper for your firearm, you could start at about 60% of the recommended maximum load for the cartridge & work up from there to the old-school "high speed" .38-55 equivalent load.
    (The 9.3x72R is NOT a POWERHOUSE but it is perfectly adequate out to 200M+ for RED DEER & wild Boar-size game, using a 200-225 grain GCCB or JHP.)
    When I was stationed in BRD, I often hunted with a retired German policeman, who had/hunted with his late father's circa 1910 cape-gun in 9.3x72 with a 16 gauge shot-barrel. = That long/heavy/blunt-profile bullet was a DEEP penetrator on Red Deer & wild boar. It often passed through the chest of his game, leaving a GOOD blood-trail to follow if necessary.

    NOTE: WT deer are just NOT at all hard to kill cleanly. Remember that MANY THOUSANDS of WT were successfully taken using the old .32-40WCF, for close to 100 years. = Nobody can kill game "deader than dead".
    (The "standard speed" .32-40 factory load was a 180 grain RNLB at 1400FPS.)


    yours,tex
    Last edited by texasnative46; 09-20-2018 at 01:59 PM. Reason: clarity

  8. #28
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    Finally got it home.
    Did a chamber cast, definately a 9.3x72r.
    Bore measures .361/.366 +/- .001 from my lyman digital verniers.

    So now to decide what to do about projectiles.
    Measured twist rate is approximately 1:16.

    Tried the 16g out.
    First few shots with 1oz pyrodex/#7 shot.
    Won't be using that stuff again, seems dirtier than real bp, probably isn't.
    Loaded up some smokeless, 18gns AP70 & 7/8oz shot, book recommends 1oz and 18.5gns AP70.
    I'll step it up to 1 oz as 7/8 oz was way under powered even compared to the bp loads.

    So good news that it is actually a x72r.
    Very minimal freebore, maybe 3mm, is this normal for this cartridge?

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  9. #29
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    Nice to hear from you Peter,
    Good to clear all the guessing.
    Original bullets both for 9.3x57R and 9.3x72 was 12,5Grams (192gn)
    The 1-16" twist will probably handle a 250gn bullet without problems.
    Accurate can get you wathever mould you want.

    BR/ BP Sweden-

  10. #30
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    Quote Originally Posted by BlackpowderSweden View Post
    Nice to hear from you Peter,
    Good to clear all the guessing.
    Original bullets both for 9.3x57R and 9.3x72 was 12,5Grams (192gn)
    The 1-16" twist will probably handle a 250gn bullet without problems.
    Accurate can get you wathever mould you want.

    BR/ BP Sweden-
    Thankyou for mentioning accurate molds.
    I've just ordered the 36-193D.
    Will be a few weeks but I'm just pleased he ships to Australia.
    Will start out with 1:20 and go from there.
    I also have the hitek coating so I'll try that also.
    If I can get it to shoot at 3 or so inches at 50 metres I will be very happy.
    I'm not concerned about velocity as the target species for the 9.3 barrel will be pigs mainly, they won't care if the bullet is doing 1200fps or 2000fps.

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  11. #31
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    Always good to have all the questions answered!!! Good doin's peter! If the bore is decent I'd expect better than 3inches at 50. Once a good load is found and tweaked half that wouldn't surprise me.
    "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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  12. #32
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    peter72,

    LOOKS FINE. = CONGRADS.

    yours, tex

  13. #33
    Boolit Grand Master

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    Quote Originally Posted by texasnative46 View Post
    skeettx,

    Did you LOOK at the 1st link?? = The page says, "We missed one."

    yours, tex
    Tex, that's just for the picture.
    Wayne the Shrink

    There is no 'right' that requires me to work for you or you to work for me!

  14. #34
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    WayneSmith,

    At the time that I posted the comment, there was a message on the page but NO picture of anything, unless you count: We missed one..

    yours, tex
    Last edited by texasnative46; 09-24-2018 at 10:34 AM. Reason: typo

  15. #35
    Boolit Grand Master

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    Yes, it means that they missed taking a picture of that one. Hopefully that will be corrected soon.
    Wayne the Shrink

    There is no 'right' that requires me to work for you or you to work for me!

  16. #36
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    Note: AP70 is the same powder as Universal.

    For those interested I did some more testing with the 16g today.
    As always, Im open to any suggestions
    Didnt go aswell as I'd hoped.
    The gun shot fine but velocity is atrocious.
    Using ADI single action data as a starting point (the manual uses cheddite style cases and plastic wads which I'm waiting on delivery)
    Started with 1oz #7 shot, 18gns AP70 in Magtech brass.
    Over powder card, cushion wad, shot and over shot card glued in place.
    Also had 1oz (volume) pyrodex loads and same setup as with the AP70.
    Pyrodex, well I wont be using that stuff again, may aswell use real BP, but I want to keep it smokeless if possible.
    Patterned very well at 30 paces (IM or M choke I think) but after I put them over the chrony, I need to re-evaluate the loads.
    774, 778 & 804 fps with AP70.
    I have read that using card wads the loads need to be upped a bit.
    I must be losing a lot of fps due to not having a decent gas seal.
    Next step will be to up the loads incrementally to 20.5 as max, and/or maybe using 2 over powder cards.

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  17. #37
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    Pete, i've had bad performance from the ADI pistol powders of late. They don't seem to be reaching expected velocities and i get lots of unburnt powder. I'm starting to suspect something is not right. Maybe your's is from the same batch as mine.
    See if you can get hold of some Alliant powders up there. They seem to much more stable and reliable

  18. #38
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    Quote Originally Posted by CamoWhamo View Post
    Pete, i've had bad performance from the ADI pistol powders of late. They don't seem to be reaching expected velocities and i get lots of unburnt powder. I'm starting to suspect something is not right. Maybe your's is from the same batch as mine.
    See if you can get hold of some Alliant powders up there. They seem to much more stable and reliable
    Hey mate. Interesting what you say about powder reliability.
    I also ran some 12g reloads over the chrony today. According to the ADI manual they should've been punching along at 1250ish fps but were only showing at 1050-1100 with unburnt powder.

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  19. #39
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    Given the powder has been discontinued the info is possibly worthless. I've had good luck with SR-4756 in the classic 16 bore load 2 1/2 dram equiv. and 1 oz of shot. put up in Federal hulls cut to 2 1/2 in. with the Remington wad. Obviously I have no idea of the conditions in Aus. but assume it's possible some new old stock of 4756 might be found?

    In my non Nitro proofed guns I shoot Mag-Tech brass hulls loaded with 70 grs. of Ffg, conventional, classic wad column and 1 oz. of shot held in place with an overshot card and waterglass. I never could find a glue that would hold up so bought some waterglass. Life is good!!!
    "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

  20. #40
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    Progress slowed to a stop these last couple of weeks but this arrived today so I should be getting the rifle barrel shooting over the weekend.

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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