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Thread: Trimming brass to shorten OCL

  1. #1
    Boolit Master
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    Nov 2007
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    Trimming brass to shorten OCL

    Rifle and Cartridge in Question:
    Winchester 1892 in 45 Colt

    So I found a load my rifle loves.
    However the OCL is about .020 - .030 to long to feed through the mag without a hitch.
    So I was thinking, what about trimming my brass back to shorten the OCL.
    I want to be able to crimp in the crimp groove is the reason I am thinking of trimming the brass back.
    What do you think?
    Failure is not an Option

  2. #2
    Boolit Master


    Walks's Avatar
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    It's ok to do. If you mark your brass. I marked mine by dragging a 3 cornered file across the headstamp. Permanently marking the brass. And allowing quick I. D. Of fired cases.
    Happiness is a Warm GUN & more ammo to shoot in it.

    My Experience and My Opinion, are just that, Mine.

  3. #3
    Boolit Master bikerbeans's Avatar
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    Reduces case capacity and increases pressure with same powder charge. May or may not be a problem depending on how hot you are loading.

    BB

  4. #4
    Boolit Buddy
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    Try a handful, trim em short, load em, taking into account the upped pressure that bikerbeans mentions, shoot em for results, make a decision to carry on or desist. If the gun likes it and the load is safe, why not.

  5. #5
    Boolit Master
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    Thanks,
    I'll trim a hand full and see how it goes.
    These are mild loads, so pressure will not be an issue.
    Failure is not an Option

  6. #6
    Boolit Master
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    Quote Originally Posted by hylander View Post
    Thanks,
    I'll trim a hand full and see how it goes.
    These are mild loads, so pressure will not be an issue.
    The other option is a mold with the crimp groove in the correct location?

  7. #7
    Boolit Master RED BEAR's Avatar
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    Thats exactly what hornady does with there leverevolution ammo. I would be careful not to use max loads. As others have said less case capacity can equal higher pressure.

  8. #8
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    If you run across some Hornady once fired brass, it will already be shortened for you. I have to segregate my Hornady .45 Colt brass from my other brass, since it's shorter.

    Hope this helps.

    Fred
    After a shooting spree, they always want to take the guns away from the people who didn't do it. - William S. Burroughs.

  9. #9
    Boolit Master
    rintinglen's Avatar
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    Quote Originally Posted by ReloaderFred View Post
    If you run across some Hornady once fired brass, it will already be shortened for you. I have to segregate my Hornady .45 Colt brass from my other brass, since it's shorter.

    Hope this helps.

    Fred
    what he said--it may already be short enough for your purpose and you will save several hours.
    _________________________________________________It's not that I can't spell: it is that I can't type.

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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