Just got my CQBSS scope for the sr25 and I want to try the feeler gauge method of mounting it correctly. I am having trouble finding step by step instructions with pics on how to do it just right.
Thanks!
Thanks!
Rifle Scopes mounting a scope using feeler guages
- Thread starter lj_1187
- Start date
Re: mounting a scope using feeler guages
The idea is:
1. the rail is level and perpendicular to the bore.
2. the flat spot on the bottom of the scope turret housing is flat and perpendicular to the vertical crosshair (and erector travel).
So, if you have a block that exactly fits between the bottom of the scope and the top of the rail, then making all the mating surfaces tight will make sure that the scope is "level" with the rifle.
So, .... stack the feeler gauges until they almost tightly fit between the rail and the bottom of the scope's turret housing. Then add small increments on the feeler gauge stack until they fit exactly, with no wobble. When the flat on the bottom of the scope fits tightly on the feeler gauges, which fit tightly on the rail, with no wobble, then the scope is "level" with the rail, which is presumably level with the bore.
The idea is:
1. the rail is level and perpendicular to the bore.
2. the flat spot on the bottom of the scope turret housing is flat and perpendicular to the vertical crosshair (and erector travel).
So, if you have a block that exactly fits between the bottom of the scope and the top of the rail, then making all the mating surfaces tight will make sure that the scope is "level" with the rifle.
So, .... stack the feeler gauges until they almost tightly fit between the rail and the bottom of the scope's turret housing. Then add small increments on the feeler gauge stack until they fit exactly, with no wobble. When the flat on the bottom of the scope fits tightly on the feeler gauges, which fit tightly on the rail, with no wobble, then the scope is "level" with the rail, which is presumably level with the bore.
Re: mounting a scope using feeler guages
This should be even better than feeler gauges:
http://shop.milehighshooting.com/A-0080-81-Leveling-kit-for-separate-rings-A-0080-81.htm
This should be even better than feeler gauges:
http://shop.milehighshooting.com/A-0080-81-Leveling-kit-for-separate-rings-A-0080-81.htm
Re: mounting a scope using feeler guages
I've used feeler gauges to make sure the ring tops sit level, as well - equal space on both sides of the ring, and equal torque values.
Mark H.
I've used feeler gauges to make sure the ring tops sit level, as well - equal space on both sides of the ring, and equal torque values.
Mark H.
Re: mounting a scope using feeler guages
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Infidel</div><div class="ubbcode-body">The idea is:
1. the rail is level and perpendicular to the bore.
2. the flat spot on the bottom of the scope turret housing is flat and perpendicular to the vertical crosshair (and erector travel).
So, if you have a block that exactly fits between the bottom of the scope and the top of the rail, then making all the mating surfaces tight will make sure that the scope is "level" with the rifle.
So, .... stack the feeler gauges until they almost tightly fit between the rail and the bottom of the scope's turret housing. Then add small increments on the feeler gauge stack until they fit exactly, with no wobble. When the flat on the bottom of the scope fits tightly on the feeler gauges, which fit tightly on the rail, with no wobble, then the scope is "level" with the rail, which is presumably level with the bore.
</div></div>
Thanks for that. I just mounted my scope and it looks great. Myself, because a cheap sob, stripped one of the cap screws because I am too cheap to buy a torque wrench. Hopefully I never need to take it out of the mount, lol. Thanks again guys and have a great holiday.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Infidel</div><div class="ubbcode-body">The idea is:
1. the rail is level and perpendicular to the bore.
2. the flat spot on the bottom of the scope turret housing is flat and perpendicular to the vertical crosshair (and erector travel).
So, if you have a block that exactly fits between the bottom of the scope and the top of the rail, then making all the mating surfaces tight will make sure that the scope is "level" with the rifle.
So, .... stack the feeler gauges until they almost tightly fit between the rail and the bottom of the scope's turret housing. Then add small increments on the feeler gauge stack until they fit exactly, with no wobble. When the flat on the bottom of the scope fits tightly on the feeler gauges, which fit tightly on the rail, with no wobble, then the scope is "level" with the rail, which is presumably level with the bore.
</div></div>
Thanks for that. I just mounted my scope and it looks great. Myself, because a cheap sob, stripped one of the cap screws because I am too cheap to buy a torque wrench. Hopefully I never need to take it out of the mount, lol. Thanks again guys and have a great holiday.
