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Thread: 44-40 to 38-40

  1. #1
    Boolit Master Hooker53's Avatar
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    44-40 to 38-40

    Has anyone tried reforming from 44-40 to 38-40? Seems it could be done even with just the 38-40 sizing die.

    Roy
    Hooker53

  2. #2
    Boolit Master


    Springfield's Avatar
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    Works fine most of the time. Going the other way works also, from 38-40 to 44-40.

  3. #3
    Boolit Master
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    Make sure the 44-40 case mouth is perfectly round. If not make it round and size it first with the 44-40 die. Once you get that paper thin brass perfectly round it should form easily. I use a 44-40 trim die sometimes to form 45-70 brass down as a preliminary step for forming 40-65 and 38-56 brass. The 45-70 brass will even form fairly easily to 38-56 in one step so I cannot see how you would have any trouble.
    EDG

  4. #4
    Boolit Man
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    Yep, that is the world's easiest forming operation, making 38/40's out of 44/40's: I think if you started with new brass you could almost do it without lube. But as EDG says, get the necks ROUND first -- the least little dent or imperfection of the neck becomes a wrinkle with this thin brass.

  5. #5
    Boolit Master Hooker53's Avatar
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    Hey thanks guys. I just tried it as per you alls instructions, and it worked great. Least now I know I can form a few out of my kinda large drawer of 44-40 when I have my rifle ready for it. Thanks all.

    Roy

  6. #6
    Boolit Master
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    I forget to mention the caliber discrepancies.

    A 44-40 is not a .44 cal. The bullet is about.427 to .429 making it at best a .43 caliber.

    A 38-40 is not a .38 caliber. The bullets are about .401 to .403 making it a .40 caliber. The difference in the case necks would only be about .026 difference. That is not a very radical neck reduction when forming brass especially thin brass.

    Quote Originally Posted by Hooker53 View Post
    Has anyone tried reforming from 44-40 to 38-40? Seems it could be done even with just the 38-40 sizing die.

    Roy
    Hooker53
    EDG

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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