9mm cast bullets tumbleing....

The #1 community for Gun Owners in Texas

Member Benefits:

  • Fewer Ads!
  • Discuss all aspects of firearm ownership
  • Discuss anti-gun legislation
  • Buy, sell, and trade in the classified section
  • Chat with Local gun shops, ranges, trainers & other businesses
  • Discover free outdoor shooting areas
  • View up to date on firearm-related events
  • Share photos & video with other members
  • ...and so much more!
  • hoytinak

    Active Member
    Rating - 0%
    0   0   0
    Mar 5, 2008
    659
    21
    Texas of course
    I ordered some 9mm lead bullets reloaded them and they are keyholeing in every 9mm I own (6 different ones) from all different ranges. I measured some and they are all .353". Shouldn't lead 9mm bullets be .356"? Would this cause the tumbleing? If that's not it anything ideas on what else it might be? Thanks
     

    txpete

    Member
    Rating - 0%
    0   0   0
    Mar 17, 2008
    136
    1
    ft hood
    oh...yea that sure would cause it and some good leading I am sure.I cast my own and size .356 and no problems with them keyholing.
    keyholing is caused by
    under sized bullets
    out of round bullets
    pressure being to high
    bullets being to soft

    I make my own alloy of wheelweights and linotype. mixed 9 lbs ww to 1 lb of lino.bhn runs 12-14 bhn.
    pete
     
    Top Bottom