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Thread: Quickload Data Request

  1. #1

    Quickload Data Request

    Hello chaps,

    I wonder whether some generous person here would be willing to run some numbers through QuickLoad as I don't have a reloading manual that gives data for anything this unorthodox:

    .308 Win
    Reloder 15 or H335
    RWS Brass (don't have the actual capacity, sorry)
    OAL 2.800"
    Hornady 220gr RNSP

    I'm looking for a suggestion of what appropriate starting / maximum loads might be and what sort of velocities I might expect to obtain.

    If someone wants to suggest a more appropriate powder from Alliant or Hodgdon, I'd also be interested to hear about that, but the two above are what I currently have in stock.

    Needless to say, anything anyone can share will be interpreted very conservatively to begin with.

    With many thanks for any assistance available,

    Adam.

  2. #2
    SD Regular Greener Jim's Avatar
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    Aye up mate! How do? Can't help I'm afraid, I've got QuickDesign but not QuickLoad.

    Did you overcome the short throat in your rifle then? I seem to remember a gunsmith saying heavy bullets wouldn't work out of yours.
    Heavier is better, I'll be loading my 405gr bullets on Monday

  3. #3
    Hello Jim - hope you're well.

    I've spent the morning playing around with some 170gr bullets I sourced from some Geco factory loads I'm not using. I tried unloading one and re-seating it to maximum length (i.e. 2.800") and it chambered perfectly. I believe, based on my calculations, that the profile of a 220gr RN might just be narrow enough at the front end to let them chamber too - although the bullets will be a good distance into the case if they do, hence the caution on the data request.

    Anyway, it's probably worth risking 30 on a box of bullets to see. I don't suppose anyone else will want them if they don't work, but it's porbably worth a try.

    Wife is grumpy with me taking up space (/breathing), so I'll sign off there and post again later.

  4. #4
    SD Regular Greener Jim's Avatar
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    I'm sure plenty of 30-06 guys will fancy the 220 rnsp's. Round nose bullets just look right!

    If they work and pack enough punch then you may have to go after boar I'm sure the wife will love that suggestion!

  5. #5
    You can use 30-40 Krag data. The case capacity of the Krag is almost identical. H335 starts at 30.0 grains with a 220 grain bullet and tops out at 33 grains.(1940 fps) I would check the actual OAL will fit in your rifle, as well as the twist rate. It will take 1-10" to stabilize that length of a bullet. Cheap bullets are a fun departure unless they absolutely don't work in your rifle.~Muir

  6. #6
    Quote Originally Posted by Muir View Post
    You can use 30-40 Krag data. The case capacity of the Krag is almost identical. H335 starts at 30.0 grains with a 220 grain bullet and tops out at 33 grains.(1940 fps) I would check the actual OAL will fit in your rifle, as well as the twist rate. It will take 1-10" to stabilize that length of a bullet. Cheap bullets are a fun departure unless they absolutely don't work in your rifle.~Muir
    Muir,

    Thanks for the tips. I'll look at the Krag data - 1940fps sounds just about where I'm aiming at (c. 2000fps) so that's a good start. The OAL is good too - measured that this morning with a substitute bullet and I'm good up to 2.800" at least - possibly more. I don't actually have a bullet big enough to find the maximum yet. There will be a fair amount of bullet inside the case, but with the lower charges taking up less space, that shouldn't be too much of a problem.

    Knowing your vast experience in these matters, twist rate may be a problem, but I'm prepared to take a risk with that. My rifle's a 1-in-12" twist, which sounds like it won't be fast enough - I respect your judgement here. However, I've run the Miller stability formula for the load listed above, and it suggests that it will be stable and with some margin to spare (stability coefficient somewhere in the region of 1.74, with c. 1.3 being good enough) so in theory it should be ok. That's enough for me to want to find out what happens in practice. In the end, if it doesn't work (I'm very happy for you to say "I told you so" when I report that it doesn't), it's 30 wasted to try an experiment which interests me, so I'm ok with that.

    I'm still interested to hear if anyone's willing to run the QuickLoad numbers. I know that neither of the powders I've listed will be the best powder for a load like this, so any input on that front will be very welcome.

    Thanks again,

    Adam.
    Last edited by neutron619; 10-01-2015 at 15:30.

  7. #7
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    Last edited by DAC; 10-01-2015 at 16:26.

  8. #8
    DAC - thank you very much for these - I'm grateful to you for taking the time to produce them. Many thanks.

    Adam.

  9. #9
    Any time mate, just drop me a message and i will do what i can .

  10. #10
    Quote Originally Posted by DAC View Post
    Any time mate, just drop me a message and i will do what i can .
    Thank you again - much appreciated. I'll drop you a PM if I think of anything else.

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