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Thread: Vintage priming arm, what does it fit?

  1. #1
    Boolit Master 15meter's Avatar
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    Vintage priming arm, what does it fit?

    With a bunch of reloading stuff I picked up came a small box with RCBS priming scribbled on it and this stuff inside:

    Click image for larger version. 

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    What's it go to?

    Doesn't fit my Rockchucker, Lyman T-Mag or my RCBS A3.

    Way to thick and shaped differently.

    It's .365 thick.

    Too good to throw out, but have no idea what I'll ever use it for when I don't have a clue what it goes to.

  2. #2
    Boolit Master



    Springfield's Avatar
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    It fit's a Herter's #3.
    Last edited by Pressman; 10-29-2019 at 10:10 AM. Reason: Not allowed

  3. #3
    Boolit Master 15meter's Avatar
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    Post at 10:32, have an answer at 11:10 on a 50 year old accessory to an arcane piece of reloading equipment, I'm impressed.

    I suspect the press that it went to is still in the basement of the guy I bought it from, stuck in a corner behind massive amounts of junk. He posted photos of what he thought was all his dad's reloading stuff on Craigslist. When I got there I found probably 3 times what he had photo's of. Loaded it all up with his help, paid the asking price with out question. Had contact with him two days later and he was more than a little rude, decided I had ripped him off by paying the asking price.

    Too many weird people in the world.

    It does appear to be set up for large primers, it also has what looks like two screw-in posts for primers. I'll have to try a small primer RCBS cup with them to see if it could work with small primers.

  4. #4
    Boolit Grand Master

    gwpercle's Avatar
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    Quote Originally Posted by Springfield View Post
    It fit's a Herter's #3.
    Darn ! You are good !
    I'm impressed
    Gary
    Certified Cajun
    Proud Member of The Basket of Deplorables
    " Let's Go Brandon !"

  5. #5
    Boolit Master
    StratsMan's Avatar
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    It also fits just about every other Herters model, and every press made off the same tooling that Herters used... Many of the inclined, C-type single-stage presses can use that primer arm.

    What size/shape is the ram in the primer cup?? Some of those old arms have concave rams, some have flat rams...

  6. #6
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    also looks like an RCBS A2

  7. #7
    Boolit Master 15meter's Avatar
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    Quote Originally Posted by Blanket View Post
    also looks like an RCBS A2
    Similar shape to my RCBS A3, much too thick to fit.

  8. #8
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    Owning an A3 puts you in an elite crowd. They are not common.

  9. #9
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    RogerDat's Avatar
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    Quote Originally Posted by Pressman View Post
    Owning an A3 puts you in an elite crowd. They are not common.
    Elite Crowd. Is that French for pack rat? :-p
    Scrap.... because all the really pithy and emphatic four letter words were taken and we had to describe this source of casting material somehow so we added an "S" to what non casters and wives call what we collect.

    Kind of hard to claim to love America while one is hating half the Americans that disagree with you. One nation indivisible requires work.

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    That's English for gooder than the best and better than the rest.

  11. #11
    Boolit Master 15meter's Avatar
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    Elite crowd alternative definition:got lucky and found one at a garage sale cheeep

  12. #12
    Boolit Mold
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    I have two of those Herter's Super 3 presses. Love them! One was Dad's and one was gifted to me by a pal. The primer cup posts come in both threaded and non threaded with a set screw. The RCBS's will fit if you get the right one. I also have 5 pacific 1934 Patent presses. These are smaller than the Herter Super 3, but still a good rugged press. This is as close as I ever got to "progressive reloading".Click image for larger version. 

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ID:	250530 Here are three of them in a row.

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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