Replied by Libertarian623 on topic need help my 0 keeps drfting
Good to see you again Turbo. Well I guess your post says it all its wandering. So I will eliminate shooter error if your not comfortable eliminating shooter error have another shooter give it a goo if the results are the same then I say move on to hardware.. That leaves just three elements the mount, rifle and scope. I would throw out the rifle, what you describe does not indicate a rifle problem to me. So the mount, lets start there, I would go through every connection made and torque to spec every bolt and screw, pay attention to the all the hardware not just the mount. Next if that does not reveal a problem move to the scope and do some return to zero exercises. If you are getting errors returning to zero from say 300-400 then to 100 then you have a problem and call Nikon, the scope is covered. Another way to check the scope is use the turrets to walk the rounds around the paper and see if the adjustments correspond to what you see on the paper.
Replied by OleCowboy on topic need help my 0 keeps drfting
Go with iron sights on a 25 meter range with the proper zero target. If its drifting then you can elim the scope, then its shooter or gun...let us know how this progresses.
The following user(s) said Thank You: MrMarty51, Akai
Replied by NightForce on topic need help my 0 keeps drfting
There a ton of great advise here!
In addition, if you can detect scope movement or creep in the scope rings they may need to be addressed. Adding a wrap of plastic electrical tape will tighten up things nicely.
Remember, most clicks will result in 1/4" change in impact point at 100 yards so you may have to do 3 or 4 clicks to detect this change.
I'd also have another competent shooter give it a test drive to corroborate your findings...
Replied by faawrenchbndr on topic need help my 0 keeps drfting
It is either the scope or the mount/rings
Get to a 25 m range, set up on bags and slowly "shoot the box"
Be careful to not warm up the barrel.
Take a shot to zero.
Adjust the scope 12 clicks left, take a shot
Adjust the scope 12 clicked down, take a shot
Adjust the scope 24 clicks right, take a shot
Adjust the scope 12 clicks up, take a shot
Adjust the scope 12 clicks left, take a shot.
Where did the last shot impact?
Remember to take your time, do not heat the barrel.
Do not pull shots.
Replied by MrMarty51 on topic need help my 0 keeps drfting
Now that is a nice process Faawrenchbender.
Also, bag the rifle down good and tight at 25yd/M targut. put scope on bull of targut, take Your second shot, without moving rifle, adjust the hairs so thet they are dead onto that second shot.
Your scope should now be zeroed to the rifle.
Now, move to the 50yd or M targut range, take a shot at that one, adjust scope as necessary. If it is adjusted a couple inches high, I`d leave it.
Practice at the 50yd/m targut for a few rounds and see if the scope still drifting.
Things is moving fast now.
What`ll You say when Jesus asks, Why did`nt You read My book ???
Replied by faawrenchbndr on topic need help my 0 keeps drfting
I always "shoot the box" to prove a new scope. Great technique to gain confidence in the glass and
ensure the optics' internals are solid. Here is my last test subject......
Remmy AAC-SD
Timney 510
Badger 20 degree base with lug
Badger standard .823" rings
Nightforce 3.5-15 NXS, zero stop, MOA
Manners TF-3 stock
Atlas
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