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Thread: 22 calibre gas check fit problems

  1. #1
    Boolit Man
    Join Date
    Sep 2009
    Location
    Alberta, Canada
    Posts
    76

    22 calibre gas check fit problems

    I recently cast a bunch of Lyman 224415 55 gr bullets for use in my single shot .223.
    I am having difficulties in getting the Lyman gas checks to snap over the base. A lot of struggle and light tapping with a wood hammer get most of them on, but some are deformed.
    Suggestions? Gas checks are very soft copper. A small expanding rod?
    Thanks.

  2. #2
    Boolit Bub
    Join Date
    Nov 2013
    Posts
    58
    I use a lubrasizer and press them on. You have to have pliers to get them off. Try your sizing die

    Sent from my SM-G965U1 using Tapatalk

  3. #3
    Boolit Master

    Rcmaveric's Avatar
    Join Date
    Jul 2017
    Location
    Jacksonville, FL
    Posts
    1,047
    Use a big one inch washer over your lubersizer die to press the bullet into the gass check. I like the washer more than a Lyman gas check seating die. You can also get the NOE gas check expander.

    Sent from my SM-G950U using Tapatalk
    "Speak softly and carry a big stick; you will go far."
    ~Theodore Roosevelt~

  4. #4
    Boolit Man
    Join Date
    Sep 2009
    Location
    Alberta, Canada
    Posts
    76
    Thanks. But I am still concerned about getting them started on the base. Currently they are too small to sit on the base to allow me to seat them squarely. When I tried my sizer it mashed the gas check.

  5. #5
    Boolit Buddy
    Join Date
    May 2016
    Location
    NW Oklahoma
    Posts
    184
    Slow and tedious but find a regular punch or tapered punch that is a little bigger than than id of checks and tap with hammer. I have a set of cheap tapered brass punches that one of the smaller ones works for this. Of course you have to pry them off of the punch every time. Takes awhile but saves your checks.

  6. #6
    Boolit Buddy
    Join Date
    Feb 2018
    Posts
    115
    Ive had good results annealing gas checks when bases have been too big. Easy proceedure and makes the checks alot softer.

  7. #7
    Boolit Master


    Join Date
    Jul 2008
    Location
    Tennessee
    Posts
    1,692
    A large ball bearing pressed on the check will flare the rim.

    Larry

  8. #8
    Boolit Man
    Join Date
    Sep 2009
    Location
    Alberta, Canada
    Posts
    76
    Thanks. I will try to make one out of a brass rod I have. Should be able to do it on my drill press.

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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