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Bullet seating and crimp grooves

Discussion in 'Handloading and Reloading' started by Hotshot10, Mar 17, 2012.

  1. Hotshot10

    Hotshot10 New Member

    Apr 2, 2011
    I'm relatively new to reloading, and I ordered some 158-grain, plated .38 specials from Rocky Mountain Reloading. These bullets have a crimp groove in them.

    When I seated them, I used the same OAL as I did with my Rainier bullets. About 1/4 of the crimp groove is covered by the brass, while the other 3/4 of the groove is above the case mouth.

    I have two questions:

    1. Should I have seated them deeper?

    2. Are the ones I loaded okay to shoot or do I have to pull them and redo them?
  2. helotaxi

    helotaxi Senior Member

    May 23, 2009
    Unless the bullet is the same dimensions, seating to the same OAL is nothing more than a WAG. I would seat to either the middle of the cannelure or to the point where almost all of it is in the case mouth and apply a very light crimp. Being that its a different bullet you'll ideally want to rework your loads.
  3. Walkalong

    Walkalong Moderator

    Nov 20, 2006
    Seat the bullets so the crimp rolls the case mouth fully into the crimp crimp. That is the correct OAL for that brass length and bullet.

    .38 Caliber

    .44 Caliber


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