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Is the new Alliant online data reliable?

Discussion in 'Uncategorized Threads' started by 3dram8, Sep 15, 2008.

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  1. 3dram8

    3dram8 Member

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    I may have come across a typo in the new Alliant published data on their website. Would 1/10 grain of powder really increase pressure and velocity this much? Copied from website data for 12 gauge Rem. hulls:

    --- 1 1/8 1,145 Rem 209P Green Dot WAA 12 & DRA12 & DRXL 1 1/8 19gr. 6,700 -.


    --- 1 1/8 1,200 Rem 209P Green Dot WAA 12 & DRA12 & DRXL 1 1/8 21gr. 8,900 -.


    --- 1 1/8 1,250 Rem 209P Green Dot WAA 12 & DRA12 & DRXL 1 1/8 21.1gr. 10,000 -.

    You'd think that maybe that last entry should be 23 gains wouldn't it seem?

    ......Rick
     
  2. 3dram8

    3dram8 Member

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    Here's another one. I wonder what the lead would be on a hard right from the 27 yard line on station five with a 21 FPS load?

    --- 1 1/8 1,090 Rem 209P Green Dot WT-12 18 8,100.

    --- 1 1/8 1,145 Rem 209P Green Dot WT-12 19.5 8,300.

    --- 1 1/8 21 Rem 209P Green Dot WT-12 21.5 8,700.


    --- 1 1/8 1,250 Rem 209P Green Dot WT-12 22 10,600.

    .....Rick
     
  3. Andy44

    Andy44 Active Member

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    E-mail Ben @ Alliant for the correct answer!
     
  4. ronbo142

    ronbo142 TS Member

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    Lets think about this for a minute....

    I am sure Alliant would really work hard to make sure that the data on the website is accurate. The liability is huge.

    What would make you think that this data would not be accurate?

    Just curoius.

    Ronbo
     
  5. 3dram8

    3dram8 Member

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    Thanks for the contact name, Andy. I'm sure I'll find more and will want to double check data with him.

    Actually, I'm a big Alliant fan as I only use their powder currently. For 12 gauge I use Red Dot for my 7/8 and 1 ounce loads, and Green Dot for 'caps and hot Sporting loads where I load 1-1/8 ounce. I'm now using 20/28 for the 20 gauge and love that powder too. .....Rick
     
  6. Hap MecTweaks

    Hap MecTweaks Well-Known Member

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    "--- 1 1/8 21 Rem 209P Green Dot WT-12 21.5 8,700."

    The above is a typo and more than likely should read, 1221. Ben at Alliant Poeders will tell you the published pressures are what the pressure gun says, period. Hap
     
  7. Andy Moreland

    Andy Moreland TS Member

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    Paul F. at Alliant has been made aware of the apparent errors and inconsistencies in their new data base and has indicated that he will contact the web masters about them.

    Andy Moreland
     
  8. BRGII

    BRGII TS Member

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    Gentlemen, I always thought that was what commonsense was. Obvious errors such as that are definitely typos. A good proof reader is needed. MHO
     
  9. Quack Shot

    Quack Shot Active Member

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    There always seems to be a discrpancy in most manuals and between other manuals. Use the data as a guide and give yourself a safety margin by not loading the highest pressure loads listed. Don't substitute components unless you have data to support it. Test results don't always fall into place as one would imagine. Differences between lots of components can cause variations as can differences in crimp depth and a host of other factors. A lot of the data is made of averages. There are highs and lows to the data samples.

    A few years ago, there were some obvious errors in the Alliant data. They were corrected when it was brought to their attention. If you see something wrong, let them know.
     
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