Re: k98 sniper rifle is done!
Nice job!!
+1 on the shims....
Here's some notes I did for another Hide member (who used an SSR mount) on ZF39 scope adjustment....hope it helps:
There are four main ways to adjust various parts of the elevation on the ZF39.
Windage adjustment is not possible - this has to be done on the SSR mount/base.
If you look at the pic above you will see:
1)The knurled steel elevation (or azimuth as the manual translation calls it) ring. On my scope I have replaced the original unmarked version with a calibrated military version.
The uncalibrated version was more often associated with the civilian /commercial scopes and the ring was made of brass. this was frequently scored by the user to note zero or BDC for their chosen distances/ammo.
Elevation is clockwise on these scopes.
2) The knurled brass screw at the rear of the turret - this is the lock for the elevation turret - very simple operation....tighten to lock, loosen to adjust.
3) On the top of the turret there are three screws - these can be loosened (BUT NOT REMOVED) to disconnect the elevation mechanism from the reticle for rezeroing the turret.
4) The painted black rotating adjuster on the top of the turret is for +/- adjusting the reticule focus.
How to zero/adjust?
The prcoess is as per any other zero but (on my scope) I use 100m as the calibrations are marked out to 800m in 100m increments.
If the shot is low, loosen the brass (rear) locking screw and adjust clockwise. If high, anti-clockwise.
The real pain is that there are no clicks and very little movement is required (for example on my scope the distance between the 100m mark and the 300m mark is exactly the elevation needed to move the shot form 100yds to 300yds with the HPS ammo I use.
Once zerod at the chosen distance you will need to rezero the turret.
To do this loosen the three slot head screws in the top of the turret (you may have to rotate the focus knob to do this but there is just enough clearance under it to make this possible. Again...DO NOT REMOVE THESE SCREWS!.
This wil free the elevation ring to rotate freely without moving the reticule.
Move the ring so that the required distance mark line lines up with the line and arrowhead on the flat portion in front of the lock screw (in the pic above mine is slighty off - the white mark to the left of the "1" should align.
Retighten the three screws, refocus the reticule as you would on any other scope using the adjustment knob on the top of the turret and you should be good to go.
HOWEVER...there is limited elevation travel internally.
If you run out in either direction and are unable to zero, the best way to sort this out is to have the front or rear post of the mount's adjusted (ground/shimmed) as required.
Do not be tempted to remove the side rail from the wall of the receiver, weld and then re-drill.
If you can get hold of (beg/borow/steal ) a copy of Law's "Sniper Variations" volume fo the BBotW there is a reprint and translation of the ZF39 manual in it.....
