1640 HVA custom build - Page 2
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Thread: 1640 HVA custom build

  1. #46
    Join Date
    Nov 2016
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    Busy night so far. Completely cut out the crossbolt in order to get the bottom metal in, cut clearance for the bolt stop and bolt handle, bent the timney trigger safety, and assembled for the very first time. The thing is a behemoth.

    I need to open up the mag well area a bit, the bottom metal is throwing the action/barrel out of wack when it's bolted together.

    Without the rear pillar in, the timney hits the top of the bottom metal and binds the action.

    Going to glue in a piece of aluminum above where the rear cross bolt was, between the trigger and mag box. There's hardly any material left there now.

  2. #47

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    Invalid attachment notice pops up for me.

  3. #48
    Join Date
    Nov 2007
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    In my WVA mind!
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    Cut the cross bolt completly?.....no other choice.
    When you glass it all together put metal fillings in glass bed materials (in the cross bolt messing areas), adding strength were you weakened it.
    If you do not get the action level out of all its bindings the gun will shift impacts on targets ....

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  5. #49
    Join Date
    May 2009
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    287

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    Hopefully it works this time. Not a size issue since last pic was larger file.
    Attachment 1963185

  6. #50
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    May 2009
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    It worked when I just tried it.

  7. #51
    Join Date
    Dec 1969
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    124

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    No joy here.

  8. #52
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    Nov 2007
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    No not here?

  9. #53
    Join Date
    May 2009
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    Not sure what the problem is. I selected the file from my desktop and then uploaded?

  10. #54
    Join Date
    Nov 2016
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    25

    Default Some pictures of my crotch

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    Once I find a screw driver I'll put up some pictures of the mill work inside the stock, and how the trigger fits

  11. #55
    Join Date
    Dec 1969
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    Bolivia or North
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    2,040

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    Looks like good work so far!
    That is one whomping long barrel.
    Are you going to glue wood into the spaces around the front ring or just fill it with dyed Glass? I'd like to see what you do.
    These actions are incredibly easy to rebarrel. Just soak with Kroil a day or two, they come right off. The receivers are pretty square and don't need much in truing.
    How many psi in a CUP?

  12. #56
    Join Date
    Nov 2016
    Posts
    25

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    Today managed to measure up the pillar height and turn a pillar. I settled on 1.050" for the rear, gives me a nice even gap between the magazine and receiver. Ended up milling out the bottom metal slightly to make clearance for the timney trigger, particularly the side safety plate that extends down to the bottom of the trigger. Glass bedding tonight...will update with pictures!

  13. #57
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    Nov 2007
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    Good so far....I see.

  14. #58
    Join Date
    Nov 2016
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    25

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    Quote Originally Posted by Ordtech View Post
    Looks like good work so far!
    That is one whomping long barrel.
    Are you going to glue wood into the spaces around the front ring or just fill it with dyed Glass? I'd like to see what you do.
    These actions are incredibly easy to rebarrel. Just soak with Kroil a day or two, they come right off. The receivers are pretty square and don't need much in truing.
    I found after running the receiver on a mandrel the face was running out around 4 thou which surprised me. We also set up the receiver dialed to the face and ID and recut the threads to 60 degree, 1" major diameter.

  15. #59
    Join Date
    Nov 2016
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    25

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    Got to shoot it. Trying to figure out how to get some range pictures off the new phone

  16. #60
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    Nov 2016
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    Here it is..managed to get it roughly on at 100 and squeezed 10 rounds through it, giving it the bore solvent/brush/patches/clp/patches until dry and clean treatment each round, or so.

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    Above you can see where I recontoured the stock slightly. Boyds supplied it with a strange "flat" that wrapped around the tang, which was neither comfortable or looked good. I ground it off level with the action and added a bit of a thumb groove, working it with the file until it felt good in the hand.

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    Here's the fill along the receiver and where the original M98 bolt release was inletted. Also how I dealt with the HVA bolt release, without disturbing the outer line of the stock.

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    Detail of the fill along the large ring gap that the stock came with. In normal light the bedding compound blends quite well with the stock, I think the camera flash is getting a reflection from the aluminum powder that the bedding utilizes as a thickener and colouring agent.

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    Here's a look at how the safety came out, and the bolt handle inletting.

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    All put together with triple gill brake by me, a borrowed bipod and the Vortex scope.

    When I pull the action out again (to add another swivel stud) I will take some pictures of the following details:
    -milling bottom metal "pocket" to fit Timney trigger, and side safety modification
    -stock inletting and cross bolt removal
    -bottom metal modification (to try and keep cross bolt and minimize stock material removal)

    No ideas on accuracy yet, I'm picking up dies soon and have 20 brass (100 w-w brass on the way) Looking for a good Retumbo/140 Partition load, maybe an ELD-X load as well.

    The only thing's I'm not impressed with are that the extractor collar seems to be distorted and binding slightly in the rear bridge when cycling the bolt. It's been on and off a few times for headspace checks while chambering and final fit-up. I'm thinking it's slightly out of round now.

    And I screwed up the caliber engraving on the barrel. Long story short I forgot to disable the A-axis while running the engraving program, and it moved slightly before the lettering was cut. Of course the engraving is perfectly half-under the stock line. Doh. My fault..

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