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Thread: Looking for a heavier 7x57 bullet

  1. #1
    Boolit Buddy
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    Looking for a heavier 7x57 bullet

    Hi All,

    I have a Brazilian 1908 7mm that I'm having a tough time getting accurate loads with. The rifle has a very long throat, and a somewhat rough bore. I'd like to try it out with a long, flat-base bullet.

    Does anyone know of a 175-ish grain bullet mold in 7mm that seems to work for you, and where I could find one to buy?

    Thanks,

    8mmFan

  2. #2
    Boolit Master
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    Noe has some heavy boolit molds. I have a Rcbs 145 grain silhouete mold that works very well in mine. I use it with 25 grains of 4895 and it will do an inch or so at 100 yrds. I am afraid though that a rough bore is your problem. have you slugged the bore to see what dia. boolit you need. I found that seating mine out a bit farther than normal helped accuracy. I just checked the NOE website and they have a 178 and a 181 grain boolit mold. The diameter is the crucial thing.
    Last edited by koehn,jim; 01-05-2019 at 09:03 AM.
    jim

  3. #3
    Boolit Buddy
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    Thanks Jim,

    I have not slugged the bore. I will do so and report back. I'll also check out the NOE website--I've never even looked at their molds. I've only ever used LEE molds, and LEE only has a couple of 130's.

    8mmFan

  4. #4
    Boolit Buddy hockeynick39's Avatar
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  5. #5
    Boolit Buddy
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    Measure the inside neck of your fired cases. That will tell you how big the neck opens. You want a lead boolit about that size. My Brazilian 1908 7mm uses a boolit sized to .288 to fill the throat.

  6. #6
    Boolit Buddy
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    8MMFan,

    My M1893, M1895 and M1916 7MM Mausers all like the Lyman #287308, a 168 grain RN cast boolit. I hope this helps.

    Adam

  7. #7
    Boolit Grand Master


    richhodg66's Avatar
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    Quote Originally Posted by Adam Helmer View Post
    8MMFan,

    My M1893, M1895 and M1916 7MM Mausers all like the Lyman #287308, a 168 grain RN cast boolit. I hope this helps.

    Adam
    Mine likes this one too, hard to find mold though. Mine is hollow pointed and worked well on a white tail doe this October.

    That NOE bullet looks great. RCBS also has a 168 grain bullet in their line up.

  8. #8
    Boolit Buddy
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    Thanks, guys. I really appreciate the feedback. I have never slugged a bore, before. But I will with this one as I really, really like the lines and feel of it and I'd like to get it to at least a level of accuracy acceptable for deer hunting and such.

    I will work with it using your suggestions and report back. Won't be today as it's my sons' 8-year birthday and I'll be busy (partially with taking him to the rifle range for a bit!). But when I do get to the rifle, I'll not forget to report back.

    By the way, Jim, it was a real eye opener to check out those NOE molds with the differing diameters. Thanks for the suggestion! Have a great day (at the range, hopefully) guys!

    8mmFan

  9. #9
    Boolit Master
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    I have an old VZ-24 Mauser in 7X57 that was built for export to South America.

    I slugged the bore and found that it measured .288". I ordered this mold from NOE:

    http://noebulletmolds.com/NV/product...qlc923hh9iq7e4

    I gas check it and size it to .290".

    It is probably one of my most accurate rifles.

    Bullet fit is everything.

    Best of luck.


    Steve in N CA

  10. #10
    Boolit Buddy
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    i use the rcbs 168 grain silhouette mold and imr 4227 (22 grains, i think).

  11. #11
    Boolit Master
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    Both my old Spanish 7mm shoot the 175gr NOE fine.

  12. #12
    Boolit Buddy Sliver Shooter's Avatar
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    I bought an RCBS 168gr mold. I just weighted a GC and lubed bullet from it that was made of mostly WW alloy. It weighted out at 182gr. I'd like to find a load that would push it about 1900fps. Nothing wild but nice to shoot. I bought a 1916 Spanish short rifle that is in excellent shape. I haven't done a caste of the bore yet and waiting for some bore casting alloy to get here

  13. #13
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    Quote Originally Posted by Sliver Shooter View Post
    I bought an RCBS 168gr mold. I just weighted a GC and lubed bullet from it that was made of mostly WW alloy. It weighted out at 182gr. I'd like to find a load that would push it about 1900fps. Nothing wild but nice to shoot. I bought a 1916 Spanish short rifle that is in excellent shape. I haven't done a caste of the bore yet and waiting for some bore casting alloy to get here
    The RCBS cast manual I used to get a deer load. I settled on 30 grains of IMR 3031 which according to them should be giving 1950 FPS or so.

    When I get around to it, I plan on experimenting with some others, most likely IMR 4895, but that 3031 load works pretty well.

  14. #14
    Boolit Master
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    I can send you some to try if you like.

  15. #15
    Boolit Buddy Sliver Shooter's Avatar
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    Thanks but I have some coming from Brownells. Is there a method to lower the weight? BHN is about 21.

  16. #16
    Boolit Buddy Sliver Shooter's Avatar
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    I tried casting a few of the same mold I mentioned in a previous reply, with a different mix of bits and pieces . Some were some soft lead, I think from a window, the other material were the darkest looking wheel weights I had in the pail. I got a BHN of about 10 but the weight was still at 180gr out of that 168gr mould. Not having any data for that weight bullet I am going with a load of 4350. The starting load for a 162gr in the Lyman book I have. I'll see what signs are apparent on the spent case. Pressure for that starting load with the 162gr is low so I think it should go fine.

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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