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  1. Replies
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    And when neck tuning the final cut should not...

    And when neck tuning the final cut should not take off more than about 0.0005 in.
    It leaves a better finish.
  2. Replies
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    There are a couple of companies making neck...

    There are a couple of companies making neck thickness sorting tools using a dial indicator.
    Use a 'tenths indicator' (1/10,000 in graduations) for these small measurements.
    1/1,000 is not precise...
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    The slingshot rest work very well.

    The slingshot rest work very well.
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    1,855

    MSDS sheets for a number of brands of 'Mineral...

    MSDS sheets for a number of brands of 'Mineral Spirits.'

    The EPA also has some info available but it takes some digging.
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    What bullets? What are you going to do with it?...

    What bullets?
    What are you going to do with it?

    Weight and form factor drive required twist.
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    A lot of the 'Mineral spirits' have acetone added...

    A lot of the 'Mineral spirits' have acetone added now.

    It used to be mostly 'Stoddard Solvent' a light wight distillation product.

    Acetone is not a VOC and the EPA has been clamping down on...
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    Most of the large machinery will not be all that...

    Most of the large machinery will not be all that damaged by fire.

    Might lose a few motors and smaller items though.

    Control knobs and stuff like that are usually pretty easy to replace.

    Cast...
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    2,508

    Faster... Cheaper... "Better" is rarely...

    Faster...
    Cheaper...
    "Better" is rarely included.

    The move to higher quality multicoating on all lens-air surfaces did wonders though.

    I have some older scopes and the overall flair in them...
  9. Replies
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    Unless that plate is solid metal it is not going...

    Unless that plate is solid metal it is not going to be a high accuracy setup.
  10. Replies
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    It is rather easy yo adjust most neck turning...

    It is rather easy yo adjust most neck turning tools in 'tenths.'

    And an error of even one thousandth on a neck that is 0.0100 thick is getting up there.

    I shoot with a 'clearance' of only...
  11. Replies
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    3,115

    All an offset will do is alter the fundamental...

    All an offset will do is alter the fundamental vibration to be more elliptical and not as circular.
    Have you tried symmetrical tuners of similar wight on those barrels?
    All that matters is the...
  12. Replies
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    6,562

    Never seen a ball mike that was vernier. Using...

    Never seen a ball mike that was vernier.

    Using a caliper of any type will not produce accurate
    thickness measurements on a curved surface.
    How wide is that flat on the jaw?

    You could try to...
  13. Replies
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    Surrounding the bore is what you want. ...

    Surrounding the bore is what you want.

    Symmetry really matters in vibration behavior.

    Since the bullet is NOT going to touch the weight most of the other
    things are not all that important.
    ...
  14. Replies
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    The solution is to turn them. Keeping in mind...

    The solution is to turn them.
    Keeping in mind that the variation likely extends to the body of the shell.

    It makes sure the bullet is centered up in the leade.

    Sizing them smaller does nothing...
  15. Thread: Bullet weld?

    by brickeyee
    Replies
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    4,634

    Beer Goggles are a real thing. Women look better...

    Beer Goggles are a real thing.
    Women look better also.
  16. Replies
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    Left large EW contractor around 2005. We still...

    Left large EW contractor around 2005.
    We still had a few retired master machinists we would call in for special jobs.

    Had a couple mills and lathes set up in a smaller room at 65F.
    Nothing CNC....
  17. Replies
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    6,562

    For my AI varmint rifles (Panda actions with...

    For my AI varmint rifles (Panda actions with right bolt, left port), heavy stainless barrels (1 inch OD at the muzzle and 28 inches long), tight necks
    I use bulk buys of commercial brass (couple...
  18. Thread: Bullet weld?

    by brickeyee
    Replies
    46
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    4,634

    Vibration works well to keep volume metering...

    Vibration works well to keep volume metering uniform.

    Ever seen one of those high speed machines in operation?

    You need hearing protection.
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    https://www.sinclairintl.com/reloading-equipment/m...

    https://www.sinclairintl.com/reloading-equipment/measuring-tools/case-gauges-headspace-tools/sinclair-case-neck-sorting-tool-prod36959.aspx

    With a 1/10,000 dial indicator it works very nicely.
    ...
  20. Thread: Bullet weld?

    by brickeyee
    Replies
    46
    Views
    4,634

    The commercial factories use industrial powder...

    The commercial factories use industrial powder that they purchase by the ton.

    It is NOT canister grade and varies significantly more.
    They work up a load, often measuring pressures, and then...
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    I use 1/10,000 dial indicator and a Sinclair jig...

    I use 1/10,000 dial indicator and a Sinclair jig that uses a rod for the anvil.

    Give the case a gentle spin and watch the variation all the way around.

    It really matters at the edges of the...
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    It is the mass that alters the location of the...

    It is the mass that alters the location of the barrel vibration nodes.

    This is one place you are looking for mass.
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    Dnser is the word you are looking for. More...

    Dnser is the word you are looking for.

    More weight per volume.
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    Sako?

    Sako?
  25. Replies
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    Mass added to the end of the barrel moves the...

    Mass added to the end of the barrel moves the vibration node around.

    By placing the node exactly at the muzzle their is reduced
    movement of the barrel (nearly none) as the bullet exits.

    The...
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