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Questions regarding roll crimping

Discussion in 'Reloading' started by XDRoX, Apr 26, 2010.

  1. XDRoX

    XDRoX

    6,441
    2,250
    Jan 24, 2009
    San Diego
    Tonight I loaded my first 38spl. I posted a lot of questions in my other thread and got a lot of good answers but I am still a little puzzled by the roll crimp.

    How do I know when enough is enough?
    I gave it my best effort. It took me almost an hour to load 10 rounds. This is what I came up with. Can you guys tell by looking at the picture if I did a good job? I don't mind pulling them and re-doing them if I need to. I honestly don't know if I am using too much crimp or not enough.
    Thanks
    [​IMG]

    [​IMG]
     
  2. Hi,

    From the pic, looks about right to a little more than necessary. As you probably know, the crimp is to keep the bullet from pulling out when the other cartridges in the cylinder are fired.

    BD
     


  3. fredj338

    fredj338

    21,931
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    Dec 22, 2004
    so.cal.
    It looks like the crimp is slightly over done. When it start ot straighten out like it shows, back it off maybe a 1/4 turn. It should just be rolled over into the crimp groove.
     
  4. XDRoX

    XDRoX

    6,441
    2,250
    Jan 24, 2009
    San Diego
  5. GioaJack

    GioaJack Conifer Jack

    10,016
    1
    Apr 14, 2009
    Conifer, CO
    Shoot 'em, it won't hurt a thing. They actually look pretty good for your first time. Like Fred said, you can back it off just a smidgen but overall it's a nice looking bullet.

    See... wasn't that hard with a three die set... you just weren't sure what you were looking for.

    Jack
     
  6. Colorado4Wheel

    Colorado4Wheel

    14,949
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    Nov 2, 2006
    CO
    Looks pretty good for a guy who didn't know what the blue stuff was in the a lead bullet.
     
  7. XDRoX

    XDRoX

    6,441
    2,250
    Jan 24, 2009
    San Diego
    Thank Jack. I've never loaded lead before, it's dirty. I don't know why but I heard the the Lone Ranger theme song in my head while I was loading them.
     
  8. XDRoX

    XDRoX

    6,441
    2,250
    Jan 24, 2009
    San Diego
    Thanks Steve, I'll take that as a compliment.:supergrin:
     
  9. fredj338

    fredj338

    21,931
    1,049
    Dec 22, 2004
    so.cal.
    Like Jack said, certainly safe to shoot, but you're just working the brass more than needed. YEs,lead bullets are a bit dirtier, but so much cheaper. Guys around here are so happy saving 2/10 of a penny per round using Tg, but then shoot an 8c jacketed bullet vs a 6c lead bullet/:dunno: If you ever get into casting it's almost liek shootign for free.:supergrin:
     
  10. Colorado4Wheel

    Colorado4Wheel

    14,949
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    Nov 2, 2006
    CO
    Good, thats how it was intended.
     
  11. dudel

    dudel

    5,412
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    Dec 10, 2008
    Texas Hill Country
    Over done maybe a smidge. Back off a bit, say a 1/4 turn. Safe to shoot.

    To imagine the ideal crimp, put your hand out, and bend the fingers at the first and second joint so they are pointing in about 45 degrees. The fingers should be located into the cannelure of the projectile.

    Overcrimping (so the the tips of the fingers are pointing back to the palm of your hand) will still work; but overworks the brass and gives you less reloads per rounds. The brass will eventually split at the case mouth. Sort of why to don't overflare the brass to get the projectile started. You want to mimimize the flexing of the case mouth and still lock in the projectile.

    Strong work for the first time.
     
  12. FM12

    FM12 I need AMMO!

    2,517
    1
    Jun 17, 2007
    Alabama
    Look goodto me. If you start crimping to heavy/much, the case will collapse and wrinkle on you. Trust me on this.