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Thread: Smokless loads for 8mm kropateschek

  1. #1
    Boolit Man
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    Smokless loads for 8mm kropateschek

    I'm getting into loading for the kropateschek rifle. I have a leaning for PP projectiles. Just wondering about powder and bullet diameter combinations. I will be using 348 win brass. Thanks in advance

  2. #2
    Boolit Master

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  3. #3
    Boolit Master
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    You can Use Loading data for 8mm Lebel.. . It is basically the same. I happen to use surplus IMR7383 surplus which is Barletts powder.
    this is similar to 4831 less 15%
    But again any 8mm lebel will do
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  4. #4
    Boolit Man
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    Thanks for the info.

  5. #5
    Boolit Master
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    "basically the same" is somewhat similar to the reloadings world of one "red neck" telling another "yall come watch this now".

    I would say if it was made for black powder, keep it at black powder. May be smellier but in the long run it could be a lot more enjoyable.

  6. #6
    Boolit Master
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    Looks Like another Black powder praiser . Don't use smokeless Danger , If They had smokeless powder in the early days They would have Dumped Black years ago
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  7. #7
    Boolit Master
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    Quote Originally Posted by salpal48 View Post
    Looks Like another Black powder praiser . Don't use smokeless Danger , If They had smokeless powder in the early days They would have Dumped Black years ago

    Are you one of the fellows who got surprised after shooting nothing but 110 grain 357 magnum in a scandium frame jframe that you got a loosened frame?

    barrel manufacturing technology was good for black powder then, smokeless powder needed a lot of improvements in manufacturing and in metal used. As a result I am a firm believer that sanity should prevail.
    If someone gave you a French tabatier rifle, that was converted from a muzzle loading rifle built in 1815 and put into storage after being "condemned", but converted due to war necessities in 1869, and was later converted into a 12 gauge shotgun, would you rather use black powder shotgun loads in it, or would you rather use 3.5 inch magnum goose loads you bought at Bass Pro last month?

  8. #8
    Boolit Master
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    The Kropatchek 8x56 R was always Designed as a smokeless Load. The previous Loading 8x60R was the Black powder load For there single shot Rifle.. the model 1886/98 became the standard In 8x56R
    If you Buy an original Of the box of 10 8x56R the headstamp is dated beteen 1910-1924 pull the Bullets and you will Find smokeless Powder
    If you buy an Original pack of Ten Blanks these are 8x60R blanks and are black powder.
    I am Currently using Imr7383 surplus. I have used in the past 4831 with good Results.
    I have shot both Modified cast and Reclaimed Factory Bullets .
    I have converted all my Age Of Transaction Rifles to smokeless without Problems. with a little experimentation They are exc shooter
    I have 4 Kropatcheks , Rifle, Colonial, Short Rifle and Carbine. Each do perform Differently with the same load.
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  9. #9
    Boolit Man
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    What do you guys think about using FFFg in this chambering? Or duplex loads? I heard that the 8mm could get quite dirty with black powder. There just isn't allot of info floating around so I thought I would ask around. I want to use a PP 247gr bullet with 348 brass. I checked my bore and I'm thinking 320 to 321 diameter would be good. I just have to get a custom mold made. I'm not sure the best outfit to do this though as I always found something on the online catalogs from Accurate or Buffalo arms.

  10. #10
    Boolit Man
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    Quote Originally Posted by salpal48 View Post
    The Kropatchek 8x56 R was always Designed as a smokeless Load. The previous Loading 8x60R was the Black powder load For there single shot Rifle.. the model 1886/98 became the standard In 8x56R
    If you Buy an original Of the box of 10 8x56R the headstamp is dated beteen 1910-1924 pull the Bullets and you will Find smokeless Powder
    If you buy an Original pack of Ten Blanks these are 8x60R blanks and are black powder.
    I am Currently using Imr7383 surplus. I have used in the past 4831 with good Results.
    I have shot both Modified cast and Reclaimed Factory Bullets .
    I have converted all my Age Of Transaction Rifles to smokeless without Problems. with a little experimentation They are exc shooter
    I have 4 Kropatcheks , Rifle, Colonial, Short Rifle and Carbine. Each do perform Differently with the same load.
    What type of bullet are you using?

  11. #11
    Boolit Master
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    Quote Originally Posted by Mgvande View Post
    What type of bullet are you using?
    Since I have a Complete set of Rifles. i have not slug the bore. . I started using a Jacketed 170 Gn. speer .323 ( 8mm )
    bullet. Then changes to RN to feed in the mag.
    The basic Charge is 38.1 Gn IMR 7383 . I used Lee data from There 8mm Lebel using 4831 less appox 15%. All shoot well and Decent group @ 100 yds. military Rifles are what they are and these are No different
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  12. #12
    Boolit Master
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    I have researched this cartridge , Even though I stated I use a .323 Bullet all the surplus ammo I have pulled apart , The bullet Diameter Is .319- 320.
    The surplus ammo Is Packs of Ten. with Portuguese writing that states Cartridges 8mm Model 99 . all headstamp 1919 . I do have ammo dated 1924 But have not Pulled them to check
    from the Pull The powder Is Extruded rods
    Pulling The blanks even Though there 8x60R . The wood Bullet Diameter Is appox .320 with Black powder
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  13. #13
    Boolit Man
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    It's interesting that 4831 would be a powder choise for this rifle as it is fairly slow compared to let's say 4895 or something similar.

  14. #14
    Boolit Master
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    The only Reason why I chose This Is That Lee uses this In the 8mm Lebel Load data . I have a lot Of Imr 7383 like i said In the above post.
    There were other Powder Listed . But this is the one I chose. Info on this cartridge Is Limited . another Thing is that the surplus case powder Is Very course .and it looks similar to 4831 and fills the case to almost the top. This is not very scientific but works for me
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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