Yukon Sightline N450 wandering zero

[Sika98k]

Got a problem with this scope. As a digital NV scope it’s good. However the X & Y coordinates have steadily moved North and West. I zero it, come back a few days later and the point of impact has moved up and left.
From low single digit settings on the X&Y I am now at 18 and 22. To say the least it’s frustrating and a waste of expensive ammunition.
Any one else had these issues ?

 

[Lancaster]

Got a problem with this scope. As a digital NV scope it’s good. However the X & Y coordinates have steadily moved North and West. I zero it, come back a few days later and the point of impact has moved up and left.
From low single digit settings on the X&Y I am now at 18 and 22. To say the least it’s frustrating and a waste of expensive ammunition.
Any one else had these issues ?

Yep, when I first got it.
When you attached the bottom of the scope to the mount did you use blue loctite on the 3 screws?
Check your mount attachment to the rail on the rifle, it needs a jiggle to get it sat flush to the rail and then push it forward so that the small recoil lug is firm against the front of the slot in the rail.
Make sure that the mount bolts are torqued up good and firm, mine are set at 6Nm and I can take the scope off and put back on with no change of POI.
Initially I was peed off because mine was doing the same thing, once I had checked all of the above zero doesn't move.

 

[Sika98k]

@Lancaster , thanks, did I loctite the screws . Can’t remember but it’s something I generally do. I’ll check it out later.

 

[Overlay]

Yep, when I first got it.
When you attached the bottom of the scope to the mount did you use blue loctite on the 3 screws?
Check your mount attachment to the rail on the rifle, it needs a jiggle to get it sat flush to the rail and then push it forward so that the small recoil lug is firm against the front of the slot in the rail.
Make sure that the mount bolts are torqued up good and firm, mine are set at 6Nm and I can take the scope off and put back on with no change of POI.
Initially I was peed off because mine was doing the same thing, once I had checked all of the above zero doesn't move.

yep I had to loctite my 470 on exactly the same, never had a problem thereafter 100%