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Thread: New rifle problem

  1. #16
    Member Tikka7mm08's Avatar
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    I had this same problem. Was poor primary extraction and a sloppy extractor.
    7mmsaum likes this.

  2. #17
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    Quote Originally Posted by Hermitage View Post
    The only time I ever had "hard case extraction problems" was with overpressure loads.
    The worst-case scenario would be that he has a ringed chamber and that his loads are hot enough to leave brass protruding into the ring, which happens only half the time due to external environmental temperatures. To check for that, look for a shiny ring on cases where they were scuffed during extraction.

    2nd - I've twice run into manual starting loads that were already at maximum for the rifle I was using it in. One was a .25-06 load from a Nosler manual. Always start with the starting load, which should be 10% below the maximum stated pressure. He stated his loads are .5 grain below max listed but he is probably overpressure for his rifle.

    3rd - The cases were not overloaded or above max loads, but the OAL for a particular bullet profile set the bullet into the lands and caused the overpressure. In general, if you are loading a bullet in contact with the lands, the pressure will be about 20% higher than when the bullet is 0.020" to 0.050" back of the lands (depending on the shape of the ogive).
    This can be avoided by using a Case length gauge and finding the Max OAL for a particular bullet in the rifle concerned instead of just taking some book reference.
    The ringed chamber would have shown up on his first range visit i would have thought, some interesting things to consider Thanks

  3. #18
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    Quote Originally Posted by Tikka7mm08 View Post
    I had this same problem. Was poor primary extraction and a sloppy extractor.
    Ok did it do it all the time? He had some nickel brass that was alright today but other Rem brass that was a nightmare to get out.

  4. #19
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    Thanks for the replies guys it's a bit of a worry when you pay $3500 odd for a rifle and you get problems . One thing it isn't is in accurate it can shoot real good.

  5. #20
    Member Hermitage's Avatar
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    Quote Originally Posted by Mooseman View Post
    Ok did it do it all the time? He had some nickel brass that was alright today but other Rem brass that was a nightmare to get out.
    Yeah with primary extraction problems it should do it all the time. Primary extraction should break the case free of the chamber while moving slightly to the rear making secondary extraction easy.
    Many people, when "trueing" an action, will take too much from the lugs, both in the action and on the bolt, resulting in a loss of primary extraction camming. It could be that this rifle has the lug 'looseness', but as I stated it should be showing up all the time. Hense why I suspect overpressure.
    Moa Hunter likes this.
    A good job and a good wife has been the ruin of many a good hunter.

  6. #21
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    @mikee son just messaged me and said the fired empty's are stuck hard when put back in. Never fired brand new brass is fine.

  7. #22
    Almost literate. veitnamcam's Avatar
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    Quote Originally Posted by Mooseman View Post
    @mikee son just messaged me and said the fired empty's are stuck hard when put back in. Never fired brand new brass is fine.
    When sized do they then chamber and extract fine or still sticky?

    Another thing it could be is the base of the brass expanding and the die not being small enough to pull it in.
    Can happen with tight chambers and might explain why different brass was fine. ( said brass maybe thicker in the web and not expanding out when fired)

    If it is the above there is no easy solutions.
    Make a small base die out of a fl die.
    Use brass of small base and thick web dimensions only.
    Polish out rear of chamber larger.

    I'd be going back to the point of sale for a start seeing as its a new factory rifle.
    mikee and chainsaw like this.
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

  8. #23
    Member Micky Duck's Avatar
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    is he trimming???? only thing I can think off.....is there any marks on brass??? try felt penning a sticky brass case and rechamber it a few times and see where its rubbing...
    veitnamcam and Mooseman like this.

  9. #24
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    Christensen's are renowned for having problems! Suggest he gets back to the retailer who sold it to him, and then to Christensen's to have the problem sorted.

  10. #25
    Member mikee's Avatar
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    Quote Originally Posted by veitnamcam View Post

    I'd be going back to the point of sale for a start seeing as its a new factory rifle.
    Wouldn't hold my breath based on my experiences and I paid more than 3800 for mine and in the end paid another 1100 to another proper gunsmith to actually repair it.
    Had a similar issue to the one you have.
    SAUM and RUM cases have bugger all taper so primary extraction matters!! I now know more about primary extraction and M700 actions than I ever wanted too

    Having said that since it was fixed I have fired another 600 rounds with exactly ..........................zero issues with extracting fired cases.
    Moa Hunter and kukuwai like this.

  11. #26
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    I can't help thinking while reading this that this forum is frickin unreal.

    4hrs old post from moose has 25 answers.

    Bloody geniuses everywhere.

    Hope your son can get it sorted

    Sent from my SM-G950F using Tapatalk
    Cyclops, Mooseman and timattalon like this.
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  12. #27
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    There is a facebook group for Christensen owners so it be someone there has had this problem and may have answer . My ridgeline is superb no dramas and a tack driver but it may be a warranty issue so that might be his first port of call.
    Mooseman likes this.

  13. #28
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    Have to agree with kukuwai awesome response from the members Many Thanks to you all. We think that maybe the brass is getting to old as its been used in his first Rum a Browning A Bolt a few times too. That's where its good to keep a record of how many times it's been fired.
    We will see what happens with new brass , hopefully its not stuck hard in chamber after firing. @wayno I think the son has been on the Christensen owners on facebook for info.
    veitnamcam and kukuwai like this.

  14. #29
    Almost literate. veitnamcam's Avatar
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    Quote Originally Posted by Mooseman View Post
    Have to agree with kukuwai awesome response from the members Many Thanks to you all. We think that maybe the brass is getting to old as its been used in his first Rum a Browning A Bolt a few times too. That's where its good to keep a record of how many times it's been fired.
    We will see what happens with new brass , hopefully its not stuck hard in chamber after firing. @wayno I think the son has been on the Christensen owners on facebook for info.
    Yep the abolt may have a more generous chamber and the web may have grown out to that and the CA maybe tighter causing the problems.
    Reload factory ammo fired in it, if you can get 4-5 full power loads out of factory brass without problems you know its not the rifle at fault.
    Mooseman likes this.
    "Hunting and fishing" fucking over licenced firearms owners since ages ago.

  15. #30
    Member Tikka7mm08's Avatar
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    Ah bingo re the A-bolt. I reload two 280AIs and the Kimber has a tight match chamber. Brass used in the Forbes doesn't like being used in the Kimber. New brass, start from there.
    Mooseman likes this.

 

 

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