Level Your Scope In 2 Seconds

[rsterne]

Leveling the scope to some surface on the rifle doesn't work unless the scope is mounted exactly over the bore.... If the vertical reticle doesn't intersect the center of the bore, you will have a scope cant error built into the rifle, period.... The device in the OP of this thread does not address this possibility, which can occur if the grooves in the receiver are off center, and/or the scope rings are not symmetrical....

This diagram shows that a scope can be perfectly level with the action, but the reticle offset, as in "A" (possible with this device).... If this situation exists, you should mount the scope as in "B", and then hold the rifle as in "C"....



Here are all the possible combinations of scope and rifle cant error, and the resulting POI relative to the POA....



Both diagrams are compliments Scott Hull, and there is a link to the discussion in the post above.... I use the method of viewing the reflection of the gun in a mirror to insure the vertical crosshair bisects the muzzle....

Bob

[Fate]

While it isn't about leveling a scope, it is scope-centric... and is an imperative factor when using a ballistics program like Chairgun to get the most from your scoped gun: Scope Height Above Bore.

Many including myself have struggled with obtaining this measurement. Here is an easy method for obtaining it. I was able to place my gun's muzzle against the paper with the cross on it, thus obtaining the most precise measurement... which was different from the one I'd obtained after pain staking efforts with conventional methods.

Setting up a scope the best way using only a mirror and plumb line, coupled with accurate ballistics information from a piece of tinfoil, a sharpie, and a piece of paper, will provide the shooter with the best opportunity for getting the most from their money and making each pellet count.

https://airgunaccuracy.wordpress.com/chairgun-and-scope-height/

I also want to take this opportunity to thank Charlie for this thread. I've learned from it and I'm sure others have as well. It provides information that will satisfy the needs of both ends of the shooter spectrum.

[HYspd]

now if only i could quickly figure and correct hold cant because of loose nut not shouldering airgun properly issues

[Fate]

now if only i could quickly figure and correct hold cant because of loose nut not shouldering airgun properly issues

With all due respect, Chuck... that's exactly what a scope level is for.

Incidentally, it took me almost 80 years to take care of that myself. You're far from alone.

I'm editing this to provide my solution, and some reasons for hesitating for so long.

All scope levels I was once aware of stuck too far from the profile of the gun, a major turnoff for me. Others were flimsy or poorly made and suffered from accuracy issues as well as failures. Others were too hard to read in a shooting position. In some recent post here on GTA I saw one that suffered none of those things, bought one and installed it. It solved all those things for me and completed my gun's setup... finally.

[KnifeMaker]

I have the Lone Star in 30mm and need to order one in 1" (25mm). I like it a lot and have several brands here. It is by far the best.


I added an  flame orange dot to the point showing centerline and man does it stand out! Easily seen in most lighting conditions.


By accident I discovered an even better way. Adding the flame orange dot to the off side makes the liquid sistory it in to a straight line that intersects the bubble all the way thru top to bottom.  Fantastic! 


Knife