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Thread: Any difference Copper or Al gas checks

  1. #1
    Boolit Master
    Join Date
    Nov 2015
    Location
    Alabama
    Posts
    339

    Any difference Copper or Al gas checks

    I make the RCBS shot loads in 45acp which uses a gas check to seal the end of the round. Has anyone using this procedure seen any difference in groupings using standard copper VS. aluminum gas checks or thinner home made copper checks. I use both 9 and 12 size shot.

  2. #2
    Boolit Master
    Mk42gunner's Avatar
    Join Date
    Aug 2005
    Location
    Butler, MO
    Posts
    6,136
    I'm going to guess that the aluminum checks will be fine. I have successfully loaded .45 ACP shotshells using both Hornady .35 cal gas checks and wads cut from tablet backing to close the front of the case. Both worked for the limited amount of shooting I did with them.

    Robert

  3. #3
    Boolit Master
    Join Date
    Apr 2008
    Location
    Houston Missouri
    Posts
    184
    I have a check maker for my 480 Ruger. I have been making Aluminum Checks. I cannot tell any difference at all, except cost. Hornady is very proud of .475 gas checks.

    Bob

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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