Lee PrecisionInline FabricationTitan ReloadingWideners
Graf & SonsRepackboxRotoMetals2MidSouth Shooters Supply

Results 1 to 5 of 5

Thread: Modify common shell holders to fit proprietary Hornaday case trimmer

  1. #1
    Boolit Buddy
    Join Date
    Nov 2011

    Modify common shell holders to fit proprietary Hornaday case trimmer

    Cross posted to another site, did a search here but did not find a dupe...
    Those of us with a Hornaday trimmer found out/know they have a proprietary shaft size requiring shell holders with a larger hole (Hornaday of course) than other standard shell holders, which are too hard to be drilled. Today I was wondering how to use a Lee shell holder, and did not want to order a Hornaday. Duhhhhh....why hot heat it to draw the temper? Heated the Lee to red with a propane torch, let cool, and drilled it easily. I'm probably the last guy to figure this out, but there may be one other out there.

  2. #2
    Boolit Grand Master

    Join Date
    Mar 2013
    Northwest Ohio
    Even easier is order up a die makers carbide drill and drill it out leaving it hard. A solid carbide drill will cut these and not be an issue.

  3. #3
    Boolit Master

    Join Date
    Feb 2010
    There's a similar issue with using the Lee shell holders on the RCBS priming tool. The chamfer underneath isn't big enough, and it crushes the plastic insert.

    I chuck them in my mini lathe and use a Dremel with triangular stone to open them up.

  4. #4
    Boolit Man

    ambergrifleman's Avatar
    Join Date
    Apr 2006
    Southern OHio
    Order You a 8mm carbide drill. I used one to modify a lot of my Lee Shellholders to fit my Hornady Trimmer.

  5. #5
    Boolit Master
    Join Date
    Dec 2011
    Southwest MO.
    Personally I doubt they need to be that hard. But if you thought so it's pretty simple to heat it to non magnetic and quench.
    Some people live and learn but I mostly just live

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check