Scope Maxed out and Still Not Sighted in?

Status
Not open for further replies.
Huntolive

Huntolive

Member
Joined
Apr 20, 2012
Messages
1,139
Location
Virginia
I have always been able to mount and sight in all my rifles just fine on my own, this is the first time I've mounted a scope on a rifle and the right left reticle adjustment maxed out and it's still too inches to the left of center.
Vertical is on Center with a few clicks to spare.
It's a very decent Cabela's Alaskan Guide scope which are very durable.
I took it off of 1 rifle and mounted it on a new to me FNAR 308.

I really want to love this new FNAR
So what Do you think the problem is and what do I need to do?
 
Either the mount is crooked (most likely) or the scope is defective. If you have another scope on hand I would swap it on and see if you can bore site it. If the other scope also needs to be adjusted a huge amount then the mounts are the problem. Most scopes have at least 20 or 30 moa of adjustment from center. 20 moa is pretty easy to see visually. Look at the scope carefully and see if it looks like its pointed one direction or the other.
 
Thanks
So what exactly do I do?
Could it have anything to do with the way I put the rings on to the rail? When I think of mounts I'm thinking you mean the rail that you attach the rings 2 or ring bases to is that what you mean?
The rail is built into the FNAR rifle.
I'm hoping this is not an inherent problem with the rifle barrel.
 
My dads 270 was like that. Good up to 200 yards then had to start aiming right as distance increased. When he gave it to me I check it out and turned out it had a mount base that had windage. The base was all the way one direction and right/left of scope was all way opposite. I centered everything and no more issue. Point is if there is nothing wrong with the scope it has to be the mount. Curious though as to how the gun shoots with open sights. Might be prudent to see how it shoots just in case.
 
Probably more common with ARs but the barrel and receiver might not be centered in the same vertical plane.
 
FN builds a quality rifle, can't believe it's the gun. Having a fixed rail should eliminate any mount issue. Does the rail line up with the small front sight rail piece? Should be able to eye ball it. What brand rings are you using?
 
But how do I shim the mount if it is a fixed fnar rail?
Not sure exactly what kind of rings but they are 2 piece, not a mount or one piece and they have worked fine on the 30 06 I had the same scope and rings on before
I sold the rifle it was on and just mounted it on my new FNAR with out taking the scope out of the rings
 
firstly let's get some more info
what rings are you using?
is this the factory rail?
have you removed or changed anything besides mounting the scope to the rail since you got the gun?

Were it mine is dismount everything.
Remount the rail. check for straightness.
Remount rings sans scope and see if they seem off set to one side of the rail or the other.
Remount scope and see if if the tube physically points somewhere besides where the barrel does.
 
If you all would listen to the OP, the rail is part of the receiver!! I would bore sight it at this point, and if it looks out of whack, check the crown... I would shoot for groups to see if its a keeper, but it is possible FN got something off. Be sure you didn't clamp something in with your scope assembly too, clean all the surfaces, remount.
 
Expanding LoonWooof/paint-by-the-numbers....
- Pull the scope and loosen the ring bottom halves from the rail. Jiggle them a bit to settle cleanly in the slot.
- Holding each ring firmly down/anchored in the slot w/ one finger, finger tighten the ring with the other hand juuuuust enough to hold it there
- Lay a long dowel/yardstick in the bottom of the rail and look down the length.
- Is it straight... or canted Left/Right | Up/Down reference the barrel?
 
Last edited:
A laser bore sighter would be helpful. I use a cheap Bushnell that works fine up close. Remove and remount the scope mounts. Check all the surfaces for burrs. If no help maybe try another set of mounts. Try a different scope or turn the scope 90 degrees to check if it is the scope or mounts. I expect it is not the scope. Past that I do not know. My scope mounts are all screw mounted and have a windage adjustment. If you can get rings with the windage adjustment that should do it.

Are there adjustable windage rings for a rail mount?
 
I’ve seen permanently attached rails be off. The Ruger Precision Rifle came out during the brief time I sold guns. We got in three in .243 and three in 6.5 Creedmoor. The .243’s were ok but the picatinny rail on the Creedmoors was canted way to the left.
 
So what exactly do I do?
Could it have anything to do with the way I put the rings on to the rail? When I think of mounts I'm thinking you mean the rail that you attach the rings 2 or ring bases to is that what you mean?
The rail is built into the FNAR rifle.
Click to expand...

You ensure the bases are installed correctly onto the rail (one reason folks are asking for photos) and yes, if incorrect could cause a problem.

Windage adjustable rings don’t just clamp to the barrel like lots of rings, where one side is machined into the ring body and another is drawn to it when you tighten.

Non windage adjustable ring example.
942F9E23-E9BF-4354-BEA9-7E3E7F8A6FB9.jpeg

Each side is independent of the body in windage adjustable rings, so you can move them side to side. In fact your problem could even be you have windage adjustable rings not properly installed. We just don’t know without more information.


19C67D39-3116-48EC-82CC-F37FA79F8D7A.jpeg

https://www.brownells.com/optics-mo...age-adjustable-sure-grip-rings-prod22915.aspx
 
Last edited:
I recently bought a Zastava Mauser off Gunbroker that came with a strange set of bases that didn’t fit any rings I have ever seen, so I replaced them with standard Weaver bases. To my surprise I had to use up almost all of the windage in my Leupold scope to get it sighted in. I purchased a set of the Weaver windage adjustable rings and they had enough adjustment range I could center the scope and get it on paper just using the rings, then do final zero using the scope adjustment.

I would recenter the scope adjustment and try a set of the Weaver windage adjustable rings as my first step.
 
Thanks for all the help guys
So today I tried mounting a different scope with rings that were on it which were low rings and unfortunately the low rings had the front and back of the scope bells touching the rail.
So I removed the first scope i had put on the FNAR from its rings and put the other scope which is a redfield revolution and by the way I actually like redfield revolutions I feel their great bang for the buck, got it all set up and went out to shoot.
Sadly this time I ran out of vertical adjustment with more than an inch to go and just barely got the horizontal with a couple clicks to spare.

That tells me it's definitely not the Scopes and it's probably something to do with those rings, also oddly the medium rings that I used both times have the front Bell of the scope this time almost or just barely touching the rail. The rings do not appear to be windage adjustable they are solid on one side so the little dovetail thing that attaches it to the side of the rail only moves on one side and you can only tighten them on one side
 
One other potentially important fact
The rifle seems to inherently shoot great
Bullet holes were almost always touching but we're still way off when using the scope.
There are no iron sights on it so with scope on down by the creek where I was shooting I couldn't really take the scope off and just fire it and I don't have a bore sighter so I don't know how it shoots without the scope but the gun puts bullets right next to each other when you shoot them which is very encouraging
 
Status
Not open for further replies.

Similar threads

B
  • Locked
Maximum Scope Adjustment Problem (kind of long)
Replies
4
Views
672
Art Eatman
A
Y
  • Locked
Return to Ruger or not ? Precision Rifle
2
Replies
34
Views
5K
yugorpk
Y
S
  • Locked
Seeking wisdom scope mounts
Replies
0
Views
193
skeet king
S
L
  • Locked
Sharing Scopes
Replies
11
Views
809
Maverick223
Maverick223
A
  • Locked
FNAR Rifle - Looking for info on finding/mounting Scope & Bi-pod on a FNAR
Replies
16
Views
2K
madstabber
madstabber
Back
Top