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Thread: Has anyone ever made a removable full-length 12ga insert for pistol cartridges?

  1. #1
    Boolit Master

    Join Date
    Aug 2011
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    3,492

    Has anyone ever made a removable full-length 12ga insert for pistol cartridges?

    Here's my idea:

    Start with a single shot 12 ga.

    Use a takeoff rifle barrel (or blank, doesn't matter). Cut a new chamber. Let's say 38 special or some other low pressure cartridge (<20 ksi!)

    Barrel profile around the chamber matches a 2.5" 12 ga shell, or even a 2.5" 20 ga shell. Barrel profile in front of the chamber is pencil. At the muzzle, cut a press fit delrin donut to act as a guide and to center the insert barrel into the shotgun bore.

    Pretend that extraction is not an issue (which actually, it is an issue)

    ---------

    In this case, you have an insert you can drop into a 12ga single shot (handi rifle) and turn it into a 38 special, or maybe 22 hornet, or maybe even 44 special. But it's not a stub, and you could pull the insert out if you wanted to and have your unmolested 12 or 20ga shotgun back.


    ---------

    Question: why wouldn't this work?

  2. #2
    Boolit Grand Master Outpost75's Avatar
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    No reason it wouldn't work fine. Somebody made them years ago.
    The ENEMY is listening.
    HE wants to know what YOU know.
    Keep it to yourself.

  3. #3

  4. #4
    Boolit Master

    Join Date
    Aug 2011
    Posts
    3,492
    oh. awesome. That's awesome! now I can skip looking for a stub.

    And REALLY big thanks, extractor was puzzling me. They put a chamfer on there to get a fingernail around the rim (or extractor groove). I am copying that!

    Gonna be fun!

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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