Help needed on rear sight adjustment

[Ditchblow]

Hi, I have a Feinwerkbau M80 pistol and it is shooting high (10m) following a full service. I turned the rear adjuster to the right (H) and it has come to a halt (obviously at the end of the adjustment range), however, it is still shooting an inch high...anyone any ideas...many thanks.

[Rover]

Are you using a sub-six hold?

[Ditchblow]

Ummmm.........not sure I know what that is

[-TT-]

Sub-six means you align the sights below the black.

This note is interesting, in the Model 80 manual...

Screenshot 2021-08-09 135324.jpg (10.83 KiB) Viewed 2325 times

[David M]

This note is interesting, in the Model 80 manual...

Screenshot 2021-08-09 135324.jpg

The recoil lock and centrefire weight selector are on the M65 only.
Not fitted to the M80.

[David M]

Just an idea, if the shots are going high...
Check that the Foresight blade insert is fitted.

[Ditchblow]

Thanks, I will check the foresight, but, it all seemed normal to me!

[Rover]

What is a sub-six hold? Scroll down to Gwhite's third entry for a picture. THIS is what you should be using.


http://targettalk.org/viewtopic.php?f=4 ... b+six+hold

[kevinweiho]

Is the sliding mechanism smooth and locks back normally when tilt downwards or cocking the pistol? Has the pistol been broken-in with the new seals/spring(s), does the pistol group, or the shots that are shooting high scattered?

[Ditchblow]

It all slides back and locks fine, but, it has just had a new spring and seals, so that may be a cause, but, surely it should not affect the sights so severely ?

[Rover]

Are you now able to zero correctly while using the proper sub-six hold?

[kevinweiho]

Did the pistol have this problem before you had the full service done?

Is the front sight blade insert standard or the tall version?

[Rover]

Since we're talking about front sights: I recently picked up a 120 year old Mauser 88 cavalry carbine cheap at a garage sale. It was such a light, handy little thing, I thought I'd take it hunting in the mountainous, heavily wooded area I live in.

I took it to the range to check the zero with the ammo that came with it and found it was shooting about a foot high at fifty yards. Then I started with various hand loads (another story), but no luck. Then I thought I'd mess with the sights, as I have with so many of my other guns. About this time, I though I'd check its value on line: $900. No way I'm hacking on a collector's item.

Well then, I'll just make something to raise the front sight without doing something that could not be reversed. I started rooting around for my brass shim stock and realized it would be a real PIA to make something so small and precise. So I looked for something else. I came across a package of tie-wraps. Hmmm.

I snipped the tip off one. It was about the same size and shape as the inverted "V" front sight. A liberal douche (no, not a Democrat) of Super Glue and I was in business.

Back to the range with some assorted handloads: one inch high and laterally right on. What bliss!

[Ditchblow]

It was fine before the new spring and service, cause and effect probably!

[kevinweiho]

The break-in period with new seals and spring(s) should be around 50-100 shots, if it continues to shoot high, you can use a tall front blade insert to lower the muzzle.

As long as the pistol groups well, learn how to shoot with the sub-six hold.

[Ditchblow]

Thanks for that help, I have now taken the pistol back to the gunshop and had the rear sight re-set and it now has full adjustment. I a, also using the lower sighting method which works well. Many thanks for all the advice, much appreciated. Chris