Can I Fix This ????

Discussion in 'Gun Project Questions & Gunsmithing' started by Willie, Jun 12, 2019.

  1. Willie

    Willie Gold $$ Contributor

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    Okay, I bought an unfired custom 6.5 Creedmoor for my grandson's birthday. The original owner sold it to me unfired, with no scope mounted. Build was on a 700 SA (supposedly blueprinted), nicely bedded in McM stock. 2B Bart, chamber, lands to muzzle all look great.

    On to the problem, I'm lucky to get it to beat 3-4 moa @ 100 yds. I gone thru all the normal checks on screws, bases, scopes, adjusted action screw torque, 120-140 pills with H-4350, Varget, rl-16. No change to groups. No brake, so no deflection. A stripped bolt will not fall without thumb pressure. With a new case, it takes more pressure, dragging all the way. IMG_20190612_143657.jpg IMG_20190612_125054.jpg

    I think I've finally found the problem. "The bolt cone is hitting the barrel" and "the recoil lug is contacting the rear of lug recess equally, as it should, but is also contacting on front of bolt lugs".

    My question is can I stone the face and rim of the cone to clear it and the front of both front lug faces enough to halt contact? Or do I have a larger problem with action/ barrel concentricity?

    I was planning on marking up the bolt and going slow with honing it, until I have clearance with a chambered case. But, before I start, I want to hear opinions from the "brain trust".
     
  2. Tommie

    Tommie Gold $$ Contributor

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    My friend, that bolt looks bone stock. I'd seriously question the blueprinting thing.
     
  3. Willie

    Willie Gold $$ Contributor

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    Yeah, I suspected as much.
     
  4. Dusty Stevens

    Dusty Stevens COVFEFE- Thread Derail Crew Gold $$ Contributor

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    Looks to me like a bone stock bolt for sure along with a very poor barrel fitting job. Get some lead solder and stick it on the various areas with grease and see how much clearance you have.
     
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  5. Dusty Stevens

    Dusty Stevens COVFEFE- Thread Derail Crew Gold $$ Contributor

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    If the bolt is hitting the barrel im surprised you can get 3moa.
     
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  6. accuracyman

    accuracyman

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    From the picture it indicates the bolt is rubbing on the .705 counterbore and you say also it rubs on the front of the lugs. Since a stripped bolt does not fall without help is a clear indication that you have clearance issues. Since this rifle was purchased for your grandson I would not feel comfortable letting him (or anyone for that matter) shoot this rifle until you are sure everything is correct. The obvious answer is take it to a gunsmith to have all the dimensions checked out and corrected. It is worth the piece of mind and assuming the chamber is put in correctly and the barrel is good quality have a rifle that performs the way it should.

    I know this is not what you wanted to hear and stoning may get enough clearance to free up the bolt but it makes one wonder what else could be wrong if these basic barrel clearances were not correct. Hopefully it is a quick fix and you have a nice rifle to hand your grandson!

    Kris
     
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  7. accuracyman

    accuracyman

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    I read your post again and noticed the barrel is a Bartlein....you should have no problem with the barrel. Get the clearances fixed and enjoy! My 6.5 Creed with a Bartlein loves any good bullet (Hornady, Sierra, Berger, etc...) from 130g-140g with somewhere around 42g of H4350 and a small jump (.010"-.020"). As always start low and work up. Good luck.

    Kris
     
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  8. Willie

    Willie Gold $$ Contributor

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    Thank you, what you said is definitely in my mind. I want it to be safe and I won't peddle it to another, or allow my grandson to shoot it, until it's perfect.

    The bolt was going to Carlsbad for an overall upgrade, when I had load work-up finished, but ran into this.
     
  9. Dusty Stevens

    Dusty Stevens COVFEFE- Thread Derail Crew Gold $$ Contributor

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    Its a great idea to send the bolt to carlsbad but get all the other issues fixed first.
     
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  10. Willie

    Willie Gold $$ Contributor

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    For sure!
     
  11. Riesel

    Riesel Gold $$ Contributor

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    The clearances are not spec on that barrel fitting, not good at all. Barrel needs to be re-qualified. I wouldn't even worry about the "blueprint" job. When this barrel is fitted properly it should be a dang fine shooter. I would for sure have the barrel fixer check those bolt lugs for even contact.
     
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  12. Willie

    Willie Gold $$ Contributor

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    Good advice, Thanks
     
  13. Danley

    Danley Danley Precision Silver $$ Contributor

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    Besides the bolt issue, it sounds like headspace is a bit tight since resistance increases when closing the bolt on a new case.
     
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  14. hoz53

    hoz53 Gold $$ Contributor

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    Sounds like you got good advice - now I’m wondering- who sold it to you?
     
  15. Willie

    Willie Gold $$ Contributor

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    A totally innocent guy that sent his parts to the wrong smith.
     
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  16. hoz53

    hoz53 Gold $$ Contributor

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    Well ok, I hope I don’t send my parts to that guy and I sure hope you get your rifle fixed correctly
     
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  17. Daveinjax

    Daveinjax Silver $$ Contributor

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    Do you know who the smith was and if so tell us who so others won’t get screwed ?
     
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  18. Dusty Stevens

    Dusty Stevens COVFEFE- Thread Derail Crew Gold $$ Contributor

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    Before we get our torches lit we need to know what the actual problem is. It does appear by the pictures to not be trued and rubbing the counterbore. Maybe in reality the guy didnt pay for blueprinting and its really not hitting THIS barrel- maybe thats rub marks from the factory barrel- who knows. Maybe it was some misunderstanding with the previous owner and buyer and work done.
     
  19. hpshooter

    hpshooter Gold $$ Contributor

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    "Before we get our torches lit we need to know what the actual problem is."

    Sensible approach, perhaps a Texas forum member with the appropriate experience could take a look and recommend the appropriate solution.
     
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  20. carlsbad

    carlsbad Lions don't lose sleep over the opinions of sheep. Gold $$ Contributor

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    Accuracy at the MOA level is all in the barrel. You're looking at the 1/4 MOA issues.
     

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