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Thread: Controlled Round Feed

  1. #16
    Join Date
    Jan 2006
    Posts
    79
    Quote Originally Posted by Mirage416 View Post
    What is happening when you forget to feed it through the mag that makes accuracy decrease?

    I would have posted some close-up photos, but my digital camera sensor seems to have bit the dust.

    Here is the best way to describe the bolt face and extractor. Picture a shell holder, with one side of the lip opened up. This means without modification, the round will not go in from the front, only the side.
    You summed it up much better than I did. Accuracy does decrease if the round is not picked up by the bolt face.

    Another senior moment on this end

  2. #17
    Join Date
    Jul 2006
    Location
    Way west of Cowford
    Posts
    83

    Mauser -CRF

    Yes, the extractor can be modified to "jump" the rim. Some very judicious grinding/stoning is required. It is not a project for the heavy handed or fumble fisted though. Should you decide to give it a try, do it on a spare. The difference of working or becoming trash is sort of like the fine line separating rustic from raunchy. Trial and error doesn't work here. Lots of trial and patience does.

    If you want a real winter project, think 6.5 JAP Ariska!!

    Happy Holidays!!

    Steve Moore

  3. #18
    Join Date
    Jul 2004
    Posts
    965

    Cool 416, what John the Aussie was.........

    telling you is this: Imagine a solid-bottom, single-shot action, it still posesses the Mauser extractor, & when you lay a loaded cartridge in the action, as you begin to push the bolt forward, the cartridge passes over some machinings in the receiver bottom. As the cartridge moves forward, the head(or base)moves DOWN into a depression first, allowing the extractor to pass over it, & cause the face of the bolt to push it forward, at the same time the bullet is tipped up slightly, to enter the rear of the chamber. Then, still slowly moving forward, the cartridge starts to move up from this depression, sliding UNDER the extractor, feeding into the chamber. If you happen, in your travels, to come across a 40XB Remington single-shot, ask to inspect it, & open the bolt & gaze straight down, you'll see how this depression is milled in the receiver, like a rounded-off, elongated diamond shape that, as it progresses from the rear forward goes down, then up, & this is how the single-shot Mauser (and Remington) feeds without the magazine. (a little Lalo Schifrin here) "DOOdle-lee-DOO....Your assignment, 416, should you decide to accept it, is to hunt down the wily Mauser or Remington single-shot receiver; If you are captured during this endeavor, BENCHREST CENTRAL will deny any knowledge of your identity......dant-dant-dant-DA-DAAAHHHHH...."

  4. #19
    Join Date
    Feb 2003
    Location
    Billings, Montana
    Posts
    1,461
    Back when Mausers of various sorts were widely used for building custom sporting rifles most gunsmiths who built those rifles modified the extractors to allow single loading. The '03 Springfield which is basically a Mauser 98 with a few mods used a magazine cutoff so that the rifle could be single loaded. Its extractor had to snap over the rim of a single loaded round. It's not rocket science.

  5. #20
    Join Date
    May 2008
    Location
    alvin texas
    Posts
    25
    you can also push in with your thumb on the side of the extractor while your closing the bolt & it will spring the front out enough to pop over the rim.
    i'm going to build a few long range rifles on p-h mauser target actions in the future.
    the bottom action is a m84 single shot , midle is a m85 sniper rifle receiver & top is a m86 clip fed target rifle receiver.


  6. #21
    Join Date
    Feb 2003
    Location
    Poetry, Tex.
    Posts
    6,631
    dirtyjim,
    Tell me about these receivers and are they available?
    Butch

  7. #22
    Join Date
    May 2008
    Location
    alvin texas
    Posts
    25
    butch,
    i don't think these actions are availible from any of the suppliers now but they do pop up occasionally on the auctions sites. numrich had them before they stoped selling receivers & any ffl items, i don't know what they did with the ones they had in inventory. you may try contacting old western scrounger, the same guy who owns them owns gibbs rifle co.& he bought out all of p-h's inventory & tooling. i got the m85 from him, i don't know if he has any left.

    these receivers do not have the inner c-ring like a military action & do not have the bolt guide slot broached into the top of the action so you have to remove the guide rib from the bolt or broach it into the action.
    the repeaters used special bottom metal that took m14 mags, i've never seen it for sale so i'll have to make my own. other than that they are just commercial mauser actions with a flat top. if i would have known numrich was going to stop selling them i would have bought a bunch of them

  8. #23
    Join Date
    Feb 2003
    Location
    Poetry, Tex.
    Posts
    6,631
    Thanks for the information. I fool with the Mausers a little and they look interesting.
    Butch

  9. #24
    Join Date
    Dec 2007
    Location
    Brisbane, Australia
    Posts
    2,372
    dirtyjim,

    That lower action looks like the single shot action that Parker Hale sold for Palma style shooting not that long before they went out of business.

    They wouldn't have Spanish identification on them, would they?

    John

  10. #25
    Join Date
    May 2008
    Location
    alvin texas
    Posts
    25
    john,
    the bottom action is one of their single target actions. they also made a more traditional style single shot mauser action for a short time. there are no spanish markings on them, only the ser.# & parker-hale birmingham england.

    butch,
    i also have a m85 bare casting that i would let go if your interested.
    it needs the barrel threads cut, action holes drilled & tapped, trigger pin hole drilled, top finish milled & the center reamed a little for the bolt, its a few thousands undersize right now. the lug raceways are already to size.

  11. #26
    Join Date
    Jul 2007
    Location
    North Idaho
    Posts
    1
    I purchased a receiver like the bottom one from Sarco several years, it was about 90% finished and needs heat treating does anyone know the type of steel they are made of 1020....1040 or ??.

    dirtyjim, do you have any pictures of the bolt stop ejector setup it doesn't look like a standard 98 will fit and I need one for mine.

    Ken

  12. #27
    Join Date
    Feb 2003
    Location
    Poetry, Tex.
    Posts
    6,631
    Thanks for the offer. I have 2 Mauser projects going now, a Pierce receivered rifle going, and another in the wings. I have a 10/XX unfinished receiver from Aleaddict that also needs attention.
    dirtyjim, thanks again and if I can help you, let me know.
    Butch

  13. #28
    Join Date
    May 2008
    Location
    alvin texas
    Posts
    25
    ken,
    the bolt stop is from a parker hale midland 2100 & the screw that attatches it is a standard size machine screw. numrich has the bare housings for around $12 , they do not have any of the other parts. you can modify a military ejector to fit. the bolt stop works like a sako or husky hva but i haven't been able to find one to try out so i'm going to make my own.

    i'm not sure what type of steel they were made of but i've had two of them rc tested & they both came out right above 40rc. i still have to get the third one tested to make sure it doesn't need heat treated.

    butch,
    i have around 10 projects going on & at least that many planned.
    this one is almost done. its a 220 swift built on a columbian fn action. the stock is an old fajen beavertail & it has a waever k6 with a litschert 12x booster. all i have left is to ream the chamber & blue it. i was going for a 50's style benchrest look with it

  14. #29
    Join Date
    Feb 2003
    Location
    Poetry, Tex.
    Posts
    6,631
    Looks nice dirtyjim! A distance future project is a shortened mauser receiver and it will be a 250-3000.
    Butch

  15. #30
    Join Date
    Dec 2007
    Location
    Brisbane, Australia
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    2,372
    Quote Originally Posted by Butch Lambert View Post
    A distance future project is a shortened mauser receiver and it will be a 250-3000.
    Damn! I hate being reminded.

    I always wanted to shorten a P14 to shoot .44 magnum like one I saw in a magazine years ago.

    John

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