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Thread: 243 reloads using Swiss powder

  1. #1

    243 reloads using Swiss powder

    Has anybody used Swiss powders for reloading 243?
    Have been recommended to use RS 40 by a company that reloads target ammo.
    I just need a starting loads for 87g VMax.
    How's your end of the gene pool today?

  2. #2
    This is from their website.
    http://reload-swiss.com/en/reload_sw...-&hersteller=-

    They are not recommending RS40 for .243
    http://reload-swiss.com/media/editor...verw_e_web.pdf
    Last edited by Rancid Rabbit; 13-10-2016 at 22:33.

  3. #3
    I think RS40 is probably way too fast for anything in .243.

    I use RS50 for 70grain target bullets in a .243, but I'd imagine even that is too fast for 87grainers.

    Try emailing Nitrochemie - they've been very helpful whenever I've asked them for more info on their powders for specific applications, generally sending data sheets along with their recommendations. http://reload-swiss.com/en/reload_sw...ms_3/index.php
    Last edited by Dalua; 13-10-2016 at 22:45.

  4. #4
    Quote Originally Posted by billh View Post
    Have been recommended to use RS 40 by a company that reloads target ammo.
    As stated RS 40 appears to be too fast and according to Quickload (without knowing bullet seating depth) to get to max psi, your case will only be 81% filled. Now if you said RS60 that would have sounded better.

  5. #5
    Don't consider RS40 - far too fast burning, dangerously so. (It's a 5.56 / 223 powder with limited use in 308 Win with lighter bullets.) Nitrochemie lists a single loading for 243 for a 77gn bullet here:

    http://www.propellants.co.uk/reload-...load-data.html

    which uses RS60, a far better suited grade.

    RS60 (high-energy with infused nitroglycerin) and RS62 (single-base originally developed for the 270 Win with 130-150gn bullets) are much better choices and the considerably slower burning RS70 (another 'high-energy' / added nitroglycerin type) might also just be suitable.

  6. #6
    RS52 and 87gr v max are a great combo in my mates tikka.

  7. #7
    RS60 (RL17/Elcho17) is a great 243 powder, I'm running some 80 grain TTSX's in one of my 243's at 3400fps - they group on paper at <1/2".
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  8. #8
    I use rs70 for 105gr amax

  9. #9
    Am I missing something here or is it the burn rate and something else that determines a powders use?
    RS 40 has exactly the same burn rate as H4895 that is widely used in 243 but several comments appear to say RS 40 has a burn rate too fast for the 243!
    What is the answer?
    How's your end of the gene pool today?

  10. #10
    Sorry Bill, I can't answer your question as such, but can tell you they list RS 50 as their fastest powder recommended for use with the 243.
    There are more recipes in their reloading data handbook but the fastest powder being used is RS52 and these are loads from homeloaders.
    It would appear that they are getting most of their data this way, hopefully a new load data handbook will be out soon (mines from February 2015).
    Regards,
    Mark

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