Rifle Scopes Leveling a scope with a deck of card? Say it ain't so!!!

7magsavage

Sergeant
Full Member
Minuteman
Aug 9, 2012
426
122
48
So I have a scope that I'm getting ready to mount and I was going to use the leveling method that I used last time, which was bubble levels on the base and the elevation turret and then minor tweaking with a perfectly vertical line on a piece of cardboard (by using a level to make the line) at 100 yards. Then I just happened to watch the video by lowlight mounting an ATACR on a base using a deck of playing cards. Can anybody give a testament as to how well that works? I assume if lowlight made a video about it then it must be pretty darn accurate. Just seems too good to me true.

Here's the video
http://www.youtube.com/watch?v=V_K9Z9KZvPE
 
Last edited:
Cards would work, a quality feeler gauge is good also. Spuhr mounts use a thin wedge shaped piece that fits into a groove in the base and against the underside of the scope body, all the same principle.

Badger makes a leveling device which levels the scope/mount off of the rifle.

I have used the tool below, with a plumb line, very quick, easy.




My best advice is to check the rifle at the range, run it up, see if your rounds stay on the vert.

Use a plumb line, not a fence post, telephone pole, etc. Half of that stuff may not be true plumb.

Good luck.
 
Last edited:
I've never used a deck of cards, but I've used feeler gauges and imo it's the best method I've tried. I doubt I will ever go back to levels, unless I'm using a two piece base and can't use the feeler gauges.
 
You must be at least 18 years of age to use this site
You confirm that you are at least 18 years of age by continuing to use the site.