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Thread: .40/60 Marlin dies

  1. #1
    Boolit Buddy
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    .40/60 Marlin dies

    I bought out a hand loader and got a brand new set of R.C.B.S. .40/60 Marlin dies. Can anybody tell me anything about that caliber ?.

  2. #2
    Boolit Master

    pworley1's Avatar
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    It is the same as the the 40 65 winchester. The 1881 marlin had the 40 60 marlin and the 1886 winchester had the 40 65 winchester. They are both loaded with the same dies. The 40 60 winchester is not the same.
    NRA Benefactor Member NRA Golden Eagle

  3. #3
    Boolit Master marlinman93's Avatar
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    Not quite the same as the .40-65 Winchester, but very close. The .40-65 uses a bullet that runs around .406"=.408", while the Marlins usually run .003"-.004" smaller. The original .40-60 M also used small primers, where the Win. always used large primers.
    You can reload using .40-65 dies, but may find neck expanders to be a bit loose on a Marlin .40-60.

  4. #4
    Boolit Buddy
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    I am wanting to use them to reload .40/65 Win. , Should I replace the expander ball, or let it go ?.

  5. #5
    Boolit Master marlinman93's Avatar
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    Quote Originally Posted by jednorris View Post
    I am wanting to use them to reload .40/65 Win. , Should I replace the expander ball, or let it go ?.
    Have you pulled the expander and checked the size yet? Compare it to the bullet size for your .40-65 and then you'll know if it needs to be changed.

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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