Rifle Scopes This might be an ULTRA stupid noob question about rifle scopes

[john1290]

I'm just now getting into rifles. I have a few hand guns and a shotgun but just purchased a new Savage rifle in 30-06. This is the first rifle I've ever owned and I just bought my very first rifle scope. While playing around with the adjustable objective lens, I saw what looks like a crack all the way around on the inside. I dialed in 10 yards, all the way out to 300 and the scope provided a sharp image at all distances in between. So I don't no if this is normal for that crack to be there (maybe it IS normal, thus allowing me to turn the AO lens?) or if somebody at the factory torqued the heck out of it and it's busted. Here are some pictures so you can get an idea of what I'm talking about.

Pic 1 uFlMx.jpg (3456 x 2592 pixels)
Pic 2 dDguM.jpg (3456 x 2592 pixels)

thanks

 

[John-K]

Its hard for me to tell from the photos, but it looks like it may just be the edge of a locking ring, or it could be a buggered thread. Is there a step? Is the finish damaged? Can you clean it with a lens brush and take a photo a little more on-axis?

What brand/model scope is it?

 

[john1290]

Its hard for me to tell from the photos, but it looks like it may just be the edge of a locking ring, or it could be a buggered thread. Is there a step? Is the finish damaged? Can you clean it with a lens brush and take a photo a little more on-axis?

What brand/model scope is it?

Not sure what you mean by "is there a step". Finish looks perfect. Mueller scope. Here are some more pictures:

Kq0Qs.jpg (3456 x 2592 pixels)
LJ93U.jpg (3456 x 2592 pixels)
T6EG2.jpg (3456 x 2592 pixels)
8dG3l.jpg (3456 x 2592 pixels)
2kyoK.jpg (3456 x 2592 pixels)

 

[John-K]

From the photos it looks like either a buggered thread, or some kind of sealant on the locking ring.

I've attached a photo, the red arrows are the slots for a spanner to install the locking rings, the blue is the "step" or "face" of the locking rings.