Cricket rail height
What is your scope height that you put in Chairgun? I know it depends on scope rings and scope but I am interested what the distance between the middle of the barrel and upper rail is. It is hard to measure precisely.
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Viewing 15 replies - 1 through 15 (of 15 total)
I do , if you measure things that way.
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Ville, you do not doubt in my abilities, do you?
GKU, thanks for the clarification for the ‘geniuses’ :biggrinn:
60 mm is actually the exact measurement i had on my Crickets.
And now on the Volcano too.
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Here the spec for this rings.
Material: Steel/Aluminum
Weight: 2.7 oz
Rail Type: Picatinny/Weaver
Profile Level: Medium
Ring Diameter: 30mm
Ring Width: 25 mm
Screws Per Ring: 6
A: 30mm
B: 25mm
C: 15mm
D: N/A
E: N/A
So the Bore/Scope ctc = A/2+C+top of rail to bore center = (30mm/2)+15mm + 30mm = 60mm
If ya trust the measurements of the scope ring manufactory, no measuring tool or device is needed.
Just simple arithmetic, a fool proof tool in a mind sense. 😉
~ GKU
Ok. Whatever he wanted to measure doesn’t work in Chairgun if measured that way.
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From what I’m reading here is that shooter3 wants to know the distance from the middle of the barrel to the top of the rail.
For what ever reason(s) he wants that is his idea.
Maybe he has other scopes with different ring heights and scoops with different size dais with already known heights that he wants to mount/swap out ?
In that case it maybe easier for him to calculate the scope and bore ctc just by knowing the rail/bore distance ?
For whatever his/the reason(s) is(are) my answer above, 37.5mm – (15mm/2) = 30mm , it’s a constant and everything else changes with a different scope/mount combo.
~ GKU
Exactamundo !
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one easy measurement, take a pair of dividers or verniers and measure between the centers of blue lines shown:
I have a hawke sindwinder tac 30 and Burris Signature Zee rings (high). My height is 2.06 in or 52.324 mm.
That´s how it should be measured : Center of the bore to center of the scope. A measurement between the upper side of the barrel and top of the rail doesn´t do you any good. Unfortunately that´s how GKU has measured (kind of, not really) but i´m sure he just had a brain freeze while typing. He isn´t accustomed to the modern way of measuring things : The marvellous metric system 😉 :biggrinn: :suprisedn:
Would that formula been a measurement from the center of the bore/barrel to top of .. anything , then he should´ve deducted half the thickness of the barrel diam (7.5mm) from the first measurement and not the whole barrel diam of 15mm.
And , once again , the measurement needed is the distance between the center of the bore and the center of the scope. Nothing else regardless the formula used. :whistle:
Hi, I use the distance between the centre of barrel and the center of scope. 59.5 mm, but of course depends by the height of scope supports .
MR
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Thanks!
:biggrinn: thats great answer as always.
37.5mm – (15mm/2) = 30mm
~ GKU
Viewing 15 replies - 1 through 15 (of 15 total)
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:rofl:
Either way is cool, I have used both.
With the invention of the picatinny (MIL-STD-1913 rail)/weaver rail it’s main purpose was to create a more universal way to attach and swap out scopes more readily.
Keeping track of each spec of both the gun and scope/mount combo would be a good idea.
Great I think when one has many other airgun/guns with many other scopes/mount combs at hand.
Maybe a higher powered scope that is preferred for target shooting verse another one that would be more practical in the use when hunting.
Just add the two measurements and input it into ChairGun, printout range card and you’re good to go.
~ GKU