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Thread: 357/38 rimless query

  1. 03-21-2023, 10:40 AM #1
    Mozz
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    357/38 rimless query

    I am building a 357/38 rimless, anybody got information on this cartridge.

    I essence its a 223 case cut down to 357 length; re sized...

    Any information would be helpful.

    Regards
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  2. 03-21-2023, 11:17 AM #2
    Willbird
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    Quote Originally Posted by Mozz View Post
    I am building a 357/38 rimless, anybody got information on this cartridge.

    I essence its a 223 case cut down to 357 length; re sized...

    Any information would be helpful.

    Regards
    Starline has a 223 basic case that folks use for 357AR. Back ordered right now.

    https://www.starlinebrass.com/223-basic

    For 357AR they require neck reaming and I would presume the same for your purposes too. I might have a few kicking around from when I had a 357AR barrel, I sold the virgin brass with the barrel but might have some used stuff that you could use trimmed back.

    You might also be able to shove some 350 legend cases through a push through sizer and trim them, they only need sized down .01.
    Both ends WHAT a player
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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