Strelok pro, Adjustable rings and scope height

[shambozzie]

In the process of trying to figure out the scope height of Fx Crown mkll (built in 20 moa) using Fx-no-limit rings tilted for more elevation where to measure. Fired off the question to Igor @ Sp. His answer, Always measure height at Turret no matter what rings or tilt for Strelok pro applications. Lots of guys measure at bell. Hope this help .

 

[nervoustrig]

Right, the reticle is the thing that matters and it is in the erector tube at the turrets. Unfortunately it is kinda tedious to get a precise measurement between the bore centerline and the tube center at the turrets. There is an alternative method you may have seen that involves making a tiny aperture in a piece of foil and centering it over the objective bell (wrap the foil onto the objective bell like you're baking a potato in the oven). Hang a piece of paper right in front of the muzzle. Place a mark on the paper and aim the crosshair at it, then fire a pellet. The distance between the mark and the pellet hole is a good representation of the scope height.

 

[Scouty]

Right, the reticle is the thing that matters and it is in the erector tube at the turrets. Unfortunately it is kinda tedious to get a precise measurement between the bore centerline and the tube center at the turrets. There is an alternative method you may have seen that involves making a tiny aperture in a piece of foil and centering it over the objective bell (wrap the foil onto the objective bell like you're baking a potato in the oven). Hang a piece of paper right in front of the muzzle. Place a mark on the paper and aim the crosshair at it, then fire a pellet. The distance between the mark and the pellet hole is a good representation of the scope height.

What is the purpose of the aperture? Does it allow you to focus on the dot at such a close distance?

 

[nervoustrig]

Yes that’s right.

 

[OldSpook]

Does anyone have any idea how much difference 1/8 of an inch error on a 2-inch scope height makes at 100 yards in the average setup?

 

[nervoustrig]

Less difference in the vertical than an imperceptible wind will have on the horizontal.

 

[OldSpook]

@nervoustrig yep, what you said.

The rifle modeled had a sight height of 3.25" above bore. 

 

[JungleShooter]

OldCrow,

thank you for running the ballistics for this.



It really puts my mind at ease that a slight error in scope height is not going to make a huge difference.

I still will carefully measure — but now knowing this I have a more solid assurance that the reason why I missed that pigeon today was a SHOOTER's error! Grrrrr!!!



I'm running out of excuses to blame my misses!

Matthias

 

[OldSpook]

@Matthias Yup