Why won’t my bolt close?

Discussion in 'Long Range Hunting & Shooting' started by rick523, Aug 14, 2019.


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  1. rick523

    rick523 Well-Known Member

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    Im shooting a Bergara B14 HMR in the dreaded 6.5 C M. Load is 143 ELDx, 41.5 gr. H4350 CCI BR2 primers, Hornady cases. Seated .015 off the lands. Here’s the problem if I neck size a fire formed case the bolt will not close on about half of the rounds. I neck size everything except 223 and have never ran into this. Any ideas, suggestions. Don’t really want to FL size if I can keep from it. Thanks!
     
    Last edited: Aug 14, 2019
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  2. lancetkenyon

    lancetkenyon Well-Known Member

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    Why not FL size? I FL size every time, bumping shoulders back .0015-.002". Accuracy is phenomenal with a good load.

    By the looks of your charge weight, you are running a pretty hot load. My guess is shoulder and body need to be resized and bumped back. No reason not to, and apparently, every reason you need to if the bolt won't close on a neck sized and loaded round.
     
    Last edited: Aug 15, 2019
  3. Remmy700

    Remmy700 Well-Known Member LRH Team Member

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    At some point brother you are going to have to full size it and bump the shoulder there is really no way around it. 90% of the reloaders I know that just neck sized have since switched to FL bushing dies. It seems the entire just neck sizing thing is something from the past.
     
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  4. rick523

    rick523 Well-Known Member

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    Load isn’t really that hot. It was doing this on light loads also.
     
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  5. rick523

    rick523 Well-Known Member

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    Yes I know you need to F L after 2-3 firings, which I do. Guess I must be the only one neck sizing these days. Thanks
     
  6. rick523

    rick523 Well-Known Member

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    That should have read 41.5. Fat fingers on a iPhone don’t work out sometimes.
     
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  7. Joefrazell

    Joefrazell Well-Known Member

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    Yeah your just going to have to bump the shoulder back a .002. Could be just a brass thing. Who knows. Honestly probably not worth loosing any sleep over. Just bump them every time and you'll be set
     
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  8. coop2564

    coop2564 Well-Known Member

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    Just asking for this type trouble not FL sizing. One other possibility if compressed load bullet may of pushed back out a little and jamming lands.
     
  9. Joefrazell

    Joefrazell Well-Known Member

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    Also be sure your trimming your brass
     
  10. LongWalker

    LongWalker Well-Known Member

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    and double check your primer seating depth.
     
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  11. Wolf76

    Wolf76 Well-Known Member

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    Sounds like you need to push the shoulder back or anneal the necks.
    I use the forester bushing bump neck die and find it super useful.
     
  12. rick523

    rick523 Well-Known Member

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    All brass is trimmed and sorted.
     
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  13. rick523

    rick523 Well-Known Member

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    That’s what I’ve been doing. Thanks
     
  14. rick523

    rick523 Well-Known Member

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    Not asking for trouble, since I’ve never had this issue with any of the other 5 calibers I load. Just looking for a reason, since I’m not doing anything different than usual. Load is not compressed. Well I guess I am doing something different now. Full length sizing every time!