Max. velocity for RCBS 358-200 FN
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  1. #1
    Tenderfoot
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    Max. velocity for RCBS 358-200 FN

    Hi guys,

    Starting to collect my gear and informations for .35 Rem reloading, I couldn't find but one load for this bullet here in France :

    23 grains (Tu2000) for 1706 f/s and 20 300 psi

    Does it sound like underloaded for you, or is 1700 f/s the maximum velocity one can get from this cast bullet ?

    Thanks for your time.
    - Marlin 336 RC (.35 Rem) -

  2. #2
    Site Contributor Contributing Member
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    Naw, you can run it at over 2000 fps with many safe published loads.
    "You can't miss fast enough to win a gunfight", Bill Jordan

  3. #3
    Sidewinder
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    I don't know what powders are available to you, but there are many loads that will outperform the one you listed.

    There are also many things that will effect the performance of cast bullets: alloy, temper, sizing diameter (from what I have read, many .35 Remingtons like the bullets sized to .359 or .360"), and bullet lube to name a few.

    Good luck,

    Robert

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  5. #4
    Tenderfoot
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    Your replies just confirm what I thought.

    I am not going into some kind of "velocity" chase, especially with a cast bullet, but 1700 fps just seems very very cautious from the guys who wrote the table down.

    This is the only "official" load I have for this specific bullet with our available powders (which are produced by one government-controlled company, the SNPE). Since this caliber is quite scarce in here (and rather unknown, many hunters think you cannot kill a boar past 50 yards with it...), I guess the officials didn't make any kind of efforts with it and just used 50 years old reloading data...

    I read Hodgdon data center and found many loads for the .35 rem, but I have no clue how to safely convert them with "our" powders...
    - Marlin 336 RC (.35 Rem) -

  6. #5
    Site Contributor Certified Gunnut
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    Welcome to Marlin owners from North Central Texas. I push that bullet over 2000FPS out of my 24 inch barrel. Fom
    Bill


  7. #6
    Sidewinder
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    I looked at an old powder burn rate chart that I had found somewhere on the internet, (unfortunately I don't remmeber where), and it appears that Tu 3000 might be a better match for the .35 Remington. The bad part of this is that I have no idea of what a safe load would be.

    Could you contact the manufacturer for assistance?

    I googled "tu 3000 load 35 Remington" and found a .pdf file that contains info on tu 3000 in the .35 Remington. The info looked good to me, but use it at your own risk....

    Good Luck,

    Robert

  8. #7
    Tenderfoot
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    Hello Robert,

    Thanks for the info. I checked the googled PDF and the only one I found with my search seems to be the official Vectan/SNPE table. Tu3000 is stated for the 180Gr SPEER FN but not for the RCBS cast one (for which there is only one load, already mentioned).

    I found on several "conversion" charts (like Vithavuori) that H335 and Tu3000 are quite similar. Not exactly matching but converging.

    Since :
    - I found that the jacketed 200 Gr Sierra 2800 can be loaded with 38 Gr of Tu3000 (Vectan table)
    - and that the 200 Gr RCBS cast bullet can also be loaded with 38 Gr of H335 (US sources),

    I don't understand why the Vectan table does not list a Tu3000 load for it (which should be around 38 Gr as well I guess), and why only list a mere load with Tu2000 of 23 Gr which produce quite poor performances

    Contacting the manufacturer is a wise advice and I will follow it before doing any wrong.

    Rgds.
    Last edited by Chiquetabac; 01-09-2012 at 03:00 PM.
    - Marlin 336 RC (.35 Rem) -

  9. #8
    Sidewinder
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    If I do this right, this should be a link to the page I found: http://www.cluburuguayodetiro.com/re...ctanrifles.pdf

    I would treat it like any other load, reduce it by ten percent for a starting load, and work up carefully. That is what I did with H335 and a 200 grain Hornady, late last fall. I didn't have a mold and needed loads for a new to me carbine.

    Now I can't find a mold, buit I do have a guy from the Cast Boolit website sending me a few of the RCBS bullets to try.

    Robert

  10. #9
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    Generally speaking, you can use jacketed bullet data to work up a load for similar style and weight cast bullets.
    ..

  11. #10
    Tenderfoot
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    Hi guys,

    Just to let you know that I got the answer from Vectan technicians today. They said that it is OK to load a RCBS 358-200FN cast bullet with :

    2,27g (35 Gr) Tu3000

    They also recommand the use of gas-checks with that load, to prevent leading, and don't recommand dacron or fiber filling.

    - Marlin 336 RC (.35 Rem) -


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