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  • 4 Post By dannyb
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  • 4 Post By ebf
  • 2 Post By Ryan_Songhurst
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Thread: Leupold CDS set/grub screw size

  1. 10-11-2019, 06:22 PM #1
    BruntyHunt
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    Leupold CDS set/grub screw size

    Hey, Anyone know what the size specs are for the set screws used on a VX3i CDS turret? There’s three of them which hold the turret on.

    Cheers
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  3. 10-11-2019, 06:28 PM #2
    dannyb
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    Farken tiny and made of soft cheese
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  4. 10-11-2019, 06:42 PM #3
    BruntyHunt
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    Yea they suck, stripped one today, I was real lucky to get it back out!!
    There must be some better alternatives out there
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  5. 10-11-2019, 06:47 PM #4
    dogmatix
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    Email Leupold and they can send you replacements.
    Welcome to Sako club.
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  6. 10-11-2019, 06:48 PM #5
    ebf
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    Grub screw spec is 4-40, it is 1/4 (0.250) inch long.

    You need a 3/64 hex allen key, in a pinch a 1.0mm metric allen key will work as well.
    Last edited by ebf; 10-11-2019 at 06:59 PM.
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  7. 10-11-2019, 07:00 PM #6
    BruntyHunt
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    Awesome! Thanks heaps
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  8. 10-11-2019, 07:05 PM #7
    Ryan_Songhurst
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    Warning.... I have had two different sized grub screws on different VX3's, had the same with VX6 and VX5 also
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    270 is a harmonic divisor number[1]
    270 is the fourth number that is divisible by its average integer divisor[2]
    270 is a practical number, by the second definition
    The sum of the coprime counts for the first 29 integers is 270
    270 is a sparsely totient number, the largest integer with 72 as its totient
    Given 6 elements, there are 270 square permutations[3]
    10! has 270 divisors
    270 is the smallest positive integer that has divisors ending by digits 1, 2, …, 9.
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  9. 10-11-2019, 07:27 PM #8
    BruntyHunt
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    Best be confirming with leupold then, thanks for the warning.
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  10. 10-11-2019, 08:06 PM #9
    ebf
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    Quote Originally Posted by Ryan_Songhurst View Post
    Warning.... I have had two different sized grub screws on different VX3's, had the same with VX6 and VX5 also
    Both CDS @Ryan_Songhurst ?

    This was from my CDS turret.
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  11. 10-11-2019, 08:08 PM #10
    Ryan_Songhurst
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    Yes
    270 is a harmonic divisor number[1]
    270 is the fourth number that is divisible by its average integer divisor[2]
    270 is a practical number, by the second definition
    The sum of the coprime counts for the first 29 integers is 270
    270 is a sparsely totient number, the largest integer with 72 as its totient
    Given 6 elements, there are 270 square permutations[3]
    10! has 270 divisors
    270 is the smallest positive integer that has divisors ending by digits 1, 2, …, 9.
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  12. 10-11-2019, 08:09 PM #11
    Ryan_Songhurst
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    Theres two different sizes, some scopes have one size, some have the other, seemingly at random
    veitnamcam, ebf, 10-Ring and 1 others like this.
    270 is a harmonic divisor number[1]
    270 is the fourth number that is divisible by its average integer divisor[2]
    270 is a practical number, by the second definition
    The sum of the coprime counts for the first 29 integers is 270
    270 is a sparsely totient number, the largest integer with 72 as its totient
    Given 6 elements, there are 270 square permutations[3]
    10! has 270 divisors
    270 is the smallest positive integer that has divisors ending by digits 1, 2, …, 9.
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  13. 10-11-2019, 09:37 PM #12
    199p
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    Quote Originally Posted by Ryan_Songhurst View Post
    Warning.... I have had two different sized grub screws on different VX3's, had the same with VX6 and VX5 also
    My vx6 non hd and vx5 hd have two different sizes

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  14. 11-09-2021, 09:10 PM #13
    ando2506
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    Name: Leupold CDS allen key.PNG Views: 1172 Size: 57.4 KB
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  15. 12-09-2021, 01:18 AM #14
    Dicko
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    Quote Originally Posted by BruntyHunt View Post
    Hey, Anyone know what the size specs are for the set screws used on a VX3i CDS turret? There’s three of them which hold the turret on.

    Cheers
    If it’s about the Allen key it’s a 0.05” for the vx3i cds.

    They’re much smaller than the ones on the VX5-HD!
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