338 Lapua cases stuck in Savage gun?

Discussion in 'Reloading' started by WEATHERBY460, Apr 11, 2012.

  1. WEATHERBY460

    WEATHERBY460 Well-Known Member

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    After firing, I am having a hard time pulling the bolt open on a savage 110 BA 338 lapua action. I notice some scrape/rough edge on a small portion of the neck mouth at the opening on about 15 percent of the hole. any ideas?

    300 berger
    h1000 91.0 2760fps chronographed 26" savage barrel
    2.717" case trim length
    these are lapua brass on the second firing, first firing i had no issues with the same amount of powder
    rcbs $30 die and seater set
    2.724" case measured after shooting

    i hope its something simple this gun is a tack driver with this load
     
  2. barnesuser28

    barnesuser28 Well-Known Member

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    well if they are lengthening .007 after one firing there is defiantly a problem. i am not very experienced so i dont know what the problem could be. sorry
     

  3. WEATHERBY460

    WEATHERBY460 Well-Known Member

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    this would be the second firing...i just shot another round...bolt lift is fine it seems, just trying to pull the bolt back is where the problem lies. Also, the case does not appear or feel damaged....the other cases were because i was letting them fall to the ground and hit my cement patio...this shot i made sure i caught it before it hit the cement and overall it looks good.....i am stumped
     
  4. WEATHERBY460

    WEATHERBY460 Well-Known Member

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    i do see an ever so slight mark at the opening...not much, but its there
     
  5. snowpro440

    snowpro440 Well-Known Member

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    Weatherby 460 I have had the same problem when shooting 91.0 gr of H1000 with the 300gr smk's. I reset my full-length die and lightly oiled a patch and rubbed it over my loaded rounds before chambering and all problems went away. Let me know if that works , also what kinda groups are you getting and at what range are you shooting ?
     
  6. green 788

    green 788 Well-Known Member

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    my 110BA experiences this on occasion with Hornady cases... but not the Lapua cases, so far, that is.

    Two possible issues... the cases should not be 2.725" inches... trim to 2.715". The Hornady cases that stuck in my chamber were 2.725, and the ones that did not stick came out at 2.715"... so there's something there...

    I have also noticed that the Hornady cases will NOT admit a bullet to the case mouth after firing; in other words, you could just put prime them, put powder in, and seat the bullet again... the chamber reamers Savage is using must be super tight.

    With the Lapua cases, you can just *barely* fit a bullet into the fired case necks... and even on some of the Lapua cases the necks seem too tight to get the bullet to go in (just like with all the Hornady cases).

    So my best guess is that you have some carbon fouling in the case neck area of the chamber, and these case necks are grabbing there. Clean, clean, and clean some more and get that fouling out... then make sure your brass is totally clean (no powder fouling on the cases at all, especially at the necks)... and I think you'll find all will be well. I would probably soak the chamber neck area in some Hoppes 9, which will soften that fouling gently without being too harsh... it'll just take an over-nighter or two... but it'll work. :)

    Lots of folks pay extra for custom chambers that are just like the chambers we see on these 110BA's... so it's a good thing, really, once you get to know the idiosyncrasies of them. This will help the brass last much longer than it otherwise might...

    Dan
     
  7. WEATHERBY460

    WEATHERBY460 Well-Known Member

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    i just cleaned the chamber ...i reloaded 1 round with 90 of h1000, and made sure i trimmed the case to 2.714"...i will shoot it in a few hours...thanks for all the ideas so far
     
  8. green 788

    green 788 Well-Known Member

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    clean those cases well... if you don't have time to tumble them, take 4 aught (0000) steel wool and clean the case necks well... with a chamber that tight, you'll have to keep the soot off the cases for all to go well...
     
  9. WEATHERBY460

    WEATHERBY460 Well-Known Member

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    it was better with the cases trimmed to 2.714"...but it opened perfect at 2.712"...my buddy measured his brand new lapua cases and they were 2.710" so i am guessing i could trim down to that and be fine....any thoughts? the books all say 2.724 max trim length.
     
  10. green 788

    green 788 Well-Known Member

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    I think that should be fine, if you don't trim any shorter than factory Lapua cases.

    Are your cases totally clean? I'll emphasize again that carbon fouling on the case bodies can cause them to hang in a tight chamber also.

    See if you can slip a bullet into the neck of your fired cases... as I mentioned, with Lapua cases I can, but my Hornady cases don't open enough to actually let a bullet slip through the neck. Thicker case necks I'm assuming... haven't check that yet...

    Dan
     
  11. Reloader222

    Reloader222 Well-Known Member

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    Also measure the thickness of the case necks with a ball micrometer. Normal size for case necks are between 12.5 thousands of a inch and 14.0 thousands of an inch. You could do outside neck turning, taking off, not more than 75% of the total neck area. It would trim the thicker parts of the neck to almost the size of other parts of the neck. Thereby you get a more even grip on the bullet and it could also help with the chambering in a tight throut.
     
  12. Jinx-)

    Jinx-) Well-Known Member

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    From my experience with Savage 12LRPV, chamber was faulty, the chamber reamer which was used to cut chamber was chipped also chamber was not concentric with the riffle bore, so it was creating physical lock when brass expended when fired...

    [​IMG]

    [​IMG]
     
  13. Jinx-)

    Jinx-) Well-Known Member

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    More pictures, same chamber just different angle...

    [​IMG]

    and another piece of brass destroyed by this chamber...

    [​IMG]
     
  14. ICANHITHIMMAN

    ICANHITHIMMAN Well-Known Member

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    This is the second post here I have seen in regard to the chamber in the 338 savage rifle. Add that to my personal experience with the rifle and I would say Savage has a real issue on there hands.