weighing powder scales

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by subsonic, Jul 5, 2004.

  1. subsonic

    subsonic Active Member

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    Jul 20, 2003
    I am looking for some reccomendations on what other people are using to weigh powder charges. I bought a Dillon Determinator scale but have found that I have to add a lot of powder to see it move on the scale read out. It also has an annoying tendency to drift on the zero.
    I am weighing charges in the 7.0gn range and find that at a resolution of 0.1gn's I am getting too bigger error.
    The bullet is a 240gn cast lead 44 at 1030fps (similar to a more streamlined bullet at 1000yds or so).
    7.0+/-0.1gn will give me 0.6" vertical error at 100yds.
    7.0+/-0.3gn will give me 2" vertical error at 100yds.
    So far I have found at http://www.scalesgalore.com/oadventure.htm a Ohaus adventurer AR-1530 at $636US 0-150gm's x0.001gm's.
    Suggestions please
     
  2. Mike in Texas

    Mike in Texas Well-Known Member

    Messages:
    110
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    Dec 25, 2003
    The determinator is , as you've seen, arguably the worst scale on the market today.

    You can go to an RCBS 505 or 1010 and achieve
    your desired result without spending alot of
    money, if these are available in your area.

    Accuracy tip for beam type scales;
    Clean all surfaces with rubbing alcohol
    prior to each use. The brass flag that
    runs between the damping magnets, though non-ferrous, will pick up a surface charge and cause sluggish response. The alcohol evaporating removes this charge and you'll see increased accuracy in the weights.
    Also use alcohol to clean the balance
    pivots on a regular basis.
     

  3. dbhostler

    dbhostler Well-Known Member

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    Sep 12, 2002
    I have an older RCBS 304 scale made by Ohaus. It is listed as a pro lab quality scale. It has a double beam magnetic damper and reads from 1 to 1000 grains. Don't know if still available, but a very nice scale.
    db
    I was just on the web site you mentioned in your post and the Ohaus scale I have is still made and listed as the "Dial O Gram". I would highly recommend this model and not that bad a price.

    [ 07-05-2004: Message edited by: dbhostler ]
     
  4. hrt4me

    hrt4me New Member

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  5. NorthernSniper

    NorthernSniper Well-Known Member

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    Jul 31, 2003
    hoodcounty, My 505 was really good when I first got it but lately if I weigh out 10 or 20 charges then reweigh them they can be bang on or + or - as much as .3grs ant ideas? [​IMG]
     
  6. Brent

    Brent Well-Known Member

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    Subsonic

    I like that AR-1530 too. That's about the best one I've looked at, and has the capacity you need.