Bullet length variation

trilogymac

Sergeant
Full Member
Minuteman
Jan 4, 2007
610
8
TX
I was loading a ladder with different bullet depths and had to grab another box of bullets. They were .025 different than the first box using a Sinclair comparator. Is this much variation common?

They were 178 AMAX.
One box was in the old packaging and one in the new.

Thanks,
Trilogymac
 

mdmp5

Gunny Sergeant
Full Member
Minuteman
  • May 7, 2009
    4,942
    2,421
    Re: Bullet length variation

    That seems like quite a bit of ogive variation. One time in a box of 168 SMKs, I had a couple of bullets that were that far from the norm, but it was only about 2 out of 500.
     

    jrob300

    Gunny Sergeant
    Full Member
    Minuteman
    Sep 7, 2009
    2,492
    6
    Montana
    Re: Bullet length variation

    <div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: trilogymac</div><div class="ubbcode-body">I was loading a ladder with different bullet depths and had to grab another box of bullets. They were .025 different than the first box using a Sinclair comparator. Is this much variation common?

    They were 178 AMAX.
    One box was in the old packaging and one in the new.

    Thanks,
    Trilogymac </div></div>

    I just went through this with 208 Amax's. Same: old/new packaging. Definitely different shape.

    John
     

    Victor N TN

    Retired civilian fart
    Full Member
    Minuteman
    Feb 16, 2002
    4,025
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    68
    Knoxville TN
    Re: Bullet length variation

    If it were Sierras I would just accept it as that. They have a track record for setting up 6 different machines dumping into the same bin. Other makers usually don't run out that much.
     

    samnev

    First Sargeant
    Full Member
    Minuteman
  • Mar 16, 2010
    3,934
    100
    Surprise, AZ
    Re: Bullet length variation

    I ran into the same problem with 168 grain SMK's. Max overall length varied by 0.030". Most however were within 0.005". One would think for what they charge they would do a better job controlling the runout.