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How deep to seat my bullets?

Discussion in 'Handloading and Reloading' started by JellyJar, Aug 23, 2011.

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  1. JellyJar

    JellyJar Member

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    New guy question. I am reloading 44spl using 4.7 grains of IMR trail Boss power and 240 grain LSW bullets. How deep should I seat them into the case?

    The bullets have 7 circular groves around the base. Should I seat so I can use one of them for the roll crimp?

    Thanks

    JJ
     
  2. Josh45

    Josh45 Member

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    Usually that is what the cannelure is for. How ever, your manual should tell you how deep to sear them. Use a caliper to see how much more they need to be seated.
     
  3. rcmodel

    rcmodel Member in memoriam

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    The top groove on a cast revolver bullet is there for the roll-crimp.
    That's how deep you should seat them.

    Photo courtesy of Missouri Bullet Company.
    Note the grease groove filled with blue bullet lube, and the crimp groove right behind the front driving band edge.
    cowboy3.jpg

    rc
     
  4. Hondo 60
    • Contributing Member

    Hondo 60 Member

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    Double check your manual.
    That's just one of the reasons we recommend getting 'em.
     
  5. rcmodel

    rcmodel Member in memoriam

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    A reloading manual's OAL length with a cast revolver bullet is meaningless, unless he can find the exact same cast bullet he is using.

    Which is unlikely, unless using a Lyman bullet mold and a Lyman manual.
    The OP sounds like he is using Lee tumble lube bullets.

    Anyway, Revolver bullets seat to the crimp groove, regardless of if your manual might try to tell you otherwise.

    rc
     
  6. heydawg

    heydawg Member

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    How about on an auto? I shoot MBC 95 grain for the 380, and have struggled with finding an appropriate OAL. Like was mentioned, the OAL is meaningless since there is such variety in the cast bullets.

    "A reloading manual's OAL length with a cast revolver bullet is meaningless, unless he can find the exact same cast bullet he is using."

    So true.
     
  7. MissouriBullet

    MissouriBullet Member

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    I load mine to .964, heydawg.
     
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