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Thread: Sako Extractor Problems

  1. #16
    Join Date
    Sep 2003
    Location
    Oriental, NC
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    983
    Without having the bolt here to examine the extractor and it relationship to the case I think a bushing job reducing the ID would be my first step.

  2. #17
    Join Date
    Feb 2003
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    180
    Quote Originally Posted by Dave Tooley View Post
    Without having the bolt here to examine the extractor and it relationship to the case I think a bushing job reducing the ID would be my first step.
    What do you recommend for bushing I.D.?

  3. #18
    Join Date
    Sep 2003
    Location
    Oriental, NC
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    983
    I make the ring .620" on the OD and in this case .525" on the OD. Be sure to break the edge where the corners will come together inside the bolt. I bore the bolt out to .625". Silver solder in with low temp solder. I then bore the ID out to rim diameter +.005", clean up the front face and put a very slight chamfer on the ID.
    I set the bolt up on a threaded mandrel and a steady rest. I never take the mandrel out of the lathe. That allows me to remove the bolt and solder the ring in then screw it back on and doing the final machine work. You would then have to set it up in a mill and cut the slot for the extractor.

  4. #19
    Join Date
    Feb 2004
    Location
    Davenport, Iowa
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    431
    Quote Originally Posted by Joe View Post
    Rem 700 S/A 7MM WSM
    Sako extractor was already installed when I bought the gun
    There is no problem at all with extraction, it pulls loaded and spent cartriges out with ease
    When it comes time to flip the cartrige out of the ejection ort, the case falls back in on top of the other cases in the magazine, or on top of the follower.

    There is a slight chip of material missing out of the "claw" portion of the extractor, perhaps 25% -30% of the claw is missing.

    Yes, I have taken everything apart, cleaned, looked for burrs, lubed, and re-assembled.

    Could this missing piece of the claw be the problem?
    Joe
    I had this same problem.
    My extractor claw was just wore down and not sharp edges.
    I first thought it was ejector but new ejector and spring did not help problem.
    Ordered a new extractor and problems went away.
    This was for a BAT DS action
    Just my experience.
    Hope I'm not adding confusion to topic?
    CLP

  5. #20
    Join Date
    Feb 2003
    Location
    Fbks,Alaska
    Posts
    371
    OP,
    As Dave Tooley described & to add-

    I would suggest for a sporting rifle once the bolt nose is bushed/soldered/faced to bore the bushing I/D to .005" clearance per side or...ex.532"+.010"=.542" diameter.

    Take your bolt in hand
    Insert a piece of brass into breech face of bolt nose
    Push the piece of brass to 9oclock position
    Slowly rotate case out of bolt face
    Case dropped from extractor & possibly catches in c/bored ring of OEM riveted extractor groove in bolt nose.

  6. #21
    Join Date
    Feb 2003
    Location
    Tennessee
    Posts
    6,543
    I have 5 Pandas with 308 boltface, all 5 extract& eject PPC brass. All are RBLP.


    .

  7. #22
    Join Date
    Sep 2003
    Location
    Oriental, NC
    Posts
    983
    A couple more questions.
    How much room is there under the extractor? Does it fit closely to the rim holding it tight against the bolt face?
    Does the extractor make full contact with the rim? Meaning does it push the case to the opposite side of the bolt face.

    All these tolerances can stack up and can cause problems.

  8. #23
    Join Date
    Feb 2003
    Posts
    180
    Well guys, I've got it pretty much figured out.
    Disclaimer: I am not being ungratefful for all the help and suggestions. Just the opposite....... I thank you all.

    Installed bushing in bolt to much tighter tolerances today and re-cut raceway for Sako claw.
    No good.

    Tried my billet claw.
    No good.

    Removed ejector plunger for the 100th time and lengthened cut in side that limits plunger travel via spring pin. Before this the ejector was approx. .030" below bolt face. Set plunger to flush with bolt face so the plunger has a bit longer "push" on the case. It flipped the case out on my work bench. Imagine that. Did a little more work on the plunger and set it to .010" above bolt face. Got a little better.

    I can see now what the real problem is.
    The shortmag case just has too big and fat of an azz to come out the ejection port. After Bear season is over I am going to modify the insides of my ejection ports to give them a nice angle so the base of the case is not hitting the sharp corner of the ejection port.

    A good test before I do this will be to cut a window in the side of a case in the area where it will hit the corner of the ejection port.
    If it throws the brass like it should, modify ejection port.

    Bottom line........................ (my opinion)
    The shortmag family of cases are just barely operational in a stock 700 short action if you want to use it as a repeater

  9. #24
    Join Date
    Feb 2003
    Location
    Fbks,Alaska
    Posts
    371
    Joe,
    Your S/A-
    Look to see if there is a 1/2 football shaped scallop inside the rear bridge fwd o/b corner/aft o/b corner of ejection port.
    The .378" bolt face receivers do not have the scallop for case ejection clearance.
    Some S/A .473" bolt face receivers did not get the required machine work.


    Cut the aft end of the ejection port/rear bridge as per a 40X Repeater.

  10. #25
    Join Date
    Feb 2003
    Posts
    180
    Quote Originally Posted by Dans40X View Post
    Joe,
    Your S/A-
    Look to see if there is a 1/2 football shaped scallop inside the rear bridge fwd o/b corner/aft o/b corner of ejection port.
    The .378" bolt face receivers do not have the scallop for case ejection clearance.
    Some S/A .473" bolt face receivers did not get the required machine work.


    Cut the aft end of the ejection port/rear bridge as per a 40X Repeater.
    Do you have a pic of this?
    Or, do you have a pic of a 40X repeater?

  11. #26
    Join Date
    Feb 2003
    Location
    Fbks,Alaska
    Posts
    371
    Click image for larger version. 

Name:	700 bridge scallop.jpg 
Views:	49 
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ID:	24192

    OP,
    Roll the action up-side down & look thru the mag well for the 1/2 football shaped scallop cut in the rear bridge starting from the lug raceway towards center of bridge.

    .378" bolt face receivers do not have the scallop.

    .473" & .532" bolt face receivers have the scallop...or should.

    I've come across a dozen .473" &.532" bolt face S/A receivers that drop the case onto the follower that did not have the scallop cut in the bridge.
    Once cut,they functioned as designed.
    Last edited by Dans40X; 12-08-2020 at 06:08 PM.

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