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Question about Velocity:44spec + 44Mag

Discussion in 'Handloading and Reloading' started by 357mag357, Jul 18, 2009.

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  1. 357mag357

    357mag357 Member

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    If you loaded a 44Special case with 4.0 grain of Clay’s with a 240g lead bullet you would yield about 771fps. If you loaded a 44Mag case with the same powder and bullet weight, would you get the same velocity? I would try it myself but I don’t have a chronograph.
     
  2. depoloni

    depoloni Member

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    You'd likely get a slower velocity and definitely a lower pressure. That taking into consideration all the other details being the same - same chamber tolerances, cylinder gap, barrel length, bullet, primer, case, etc...

    Using the same charge in a larger volume of space is guaranteed to reduce pressures.

    Can't say how much slower they'd be - but could venture a guess that you'd be probably 50-150fps slower based on what I've seen with other powders like 231, Unique, and one or two others I've chrono'd loads through both cases.
     
  3. loadedround

    loadedround Member

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    You received the correct answer.
     
  4. Walkalong

    Walkalong Moderator

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    I can't say how much either, but it will be a bit less.

    With Clays powder, I would guess .1 to .3 more grains would be needed. It would make for a good experiment.

    In .38 Spl and .357 cases I am using .1 more grains Clays for light loads in .357 cases vs .38 cases.
     
  5. 357mag357

    357mag357 Member

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    Thanks you all for the info. If I did try the experiment do you think 4.0g of Clays is to small for the 44Mag with a 240g lead bullet? I don't want to get a squib load.
     
  6. rcmodel

    rcmodel Member in memoriam

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    Hodgdons lists 8 3/8" .44 Mag for a Clays/240 LSWC as:
    4.3 Starting giving 759 FPS @ 14,000 CUP
    6.2 Max giving 940 @ 21,800 CUP.

    Same bullet in 8" .44 Spl as:
    3.2 Starting = 669 @ 9,000 CUP
    4.0 max = 771 @ 13,500 CUP

    rc
     
  7. RidgwayCO

    RidgwayCO Member

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    QuickLOAD says you'd get about 30 fps less out of the .44 Magnum case with this load (assuming a 4" barrel, with COLs of 1.465" for the Special and 1.590" for the Magnum).

    And Walkalong nailed it... add about 0.3gr to equal the .44 Special's velocity with the .44 Magnum case.
     
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