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Thread: How far to seat a lead bullet?

  1. #1
    ASD Member shibmaster's Avatar
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    Default How far to seat a lead bullet?

    Hey guys, I currently have a lee auto indexing turret press. I am loading 9mm luger, and .40 S&W. There are markings on the lead bullets that show how far to seat a bullet, but for my 9mm I don't seem to get close to it when seating. I am seating my 9mm to 29.15 ish. Does that sound about right, or should I be a lot further?

    I am seating my .40 at 28.40, but that seems to be right around where the ridge is. So I think I am doing this one just fine, but I am not a 100% sure.

    Thanks,
    Zach

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    Cool

    I would not worry too much about the lines on the bullet, especially in lead bullets. Get the Min OAL and Max OAL from your book or the Lee data that came with the dies and seat in the middle of the two. Do not exceed the Max OAL or you will have feed problems. I have a Lee loadmaster and also have five different loading books that I reference. Also the Min OAL will depend on the powder, the weight, and type of bullet you are using...the amount of space needed to get a complete burn without over pressure.
    Hope this helps. Post if you need more clarification.
    Last edited by NWFFT; 04-19-2011 at 02:36 PM.
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  4. #3
    ASD Member shibmaster's Avatar
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    Default

    That makes total sense!

    One question, how would you go about making sure you are not over pressuring the cartridge?

    I am using Green Dot on both 9mm and .40.
    "If guns cause crime, then pencils cause misspelled words" (Unkown).

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    Icon6

    First of all, get two or three different reloading books...Money Well spent. Decide what powder you think you will use and then look up, in all three books, what bullet weight the powder will support. If the bullet weight is not in the book, either change your powder choice or bullet weight.
    If you seat the bullet in the middle of the min OAL and max OAL according to the data (book) you are using, you will not create an over pressure situation. Most books are conservative on their load data for obvious reasons...law suits. So if you load in the middle in all aspects, you will be fine. It will also be O.K. to test to the limit if you want to perfect your loads for accuracy.
    Retired USAF
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    Certified SIG Armorer
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    barry@nwfft.com

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