Terminology

[hawksfan75]

OK, so I went to purchase a new scope yesterday and ended up bringing one home. Went to mount it, but it won't fit on the mounts because the narrow part is to short.

What is that segment of the scope tube called? Where can I find measurements (do manufacturers even list that?)? Why the hell isn't it a standard?

[Huntbear]

Most scope companies websites, will give the measurements and dimensions on each scope they build.   There is no standard, since each scope company uses different glass, so the lengths and eye relief will all be different.

Not much help I know.

[Big10gauge]

Do you mean that the distance between your rings is too long for the scope?

[hawksfan75]

Do you mean that the distance between your rings is too long for the scope?

Yeah, that's what's happening. The scope that was on it has a longer narrow part than the new one I bought.

[batch]

I have seen some of the nikonscopes that
this happens to on a long action recievers.you can buy rings depending
on the base type ,were they will extend either direction
as long as it doesn't interfere with the rifles normal
functioning

[Straight Shooter]

What's the make and model?

[hawksfan75]

Looks like this might be moot… After pulling the old scope off of the rifle (Savage 110 .270), I was able to get the reticle back in focus and looks SO much better. Nice to have the $200 back in the pocket

[AWS]

Extension rings are availible for most commonn mounting systems (turn in and Weaver).  I use Weaver style one piece bases and just recut the cross slot if I need to move rings closer together or position scopes other than factory provided positions.



Note the slots behind the rings on this base, I needed more space for a different scope.

AWS

[bobcat]

The "narrow part" you are referring to is simply called the tube, as far as I know.