red resin blocking trigger adjustment screw

Mungo

Well-Known Member
I've just been trying to adjust the trigger pull on a recently acquired second gand Sako 75.

However, on lifting the action out of the stock, I discovered that the thread of the adjustment screw has been coated with a glob of a hard red resin of some sort. It looks a bit like candle wax, though is hard. It prevents any movement of the screw.

Does anyone have any idea what this might be and have an suggestions for how to remove it?

Thanks
 
hot air gun or soldering iron fine tip, and a cutdown q tip then oil it so it won't go hard best done with trigger set off the rifle ,only as you can see more then check test and test again after you have finished if not sure leave alone and get a smith to do it 5min job with set removed so 1hr should see it done thats two cups of tea as well, lol
if you were this way i would do it for free.

ps you are looking at the one you can access vie the magwell without removing the stock
 
Hi Mungo,

Its almost certainly 'Tamper Evident' resin. The idea being that the manufacturer sets the trigger to their perceived 'safe' pull, then puts a drop of this stuff on.

Then you can't adjust it out of factory setting without it being removed/broken. That way, they can tell if you been tinkering with the rifle should something disastrous happen.

Sometimes this stuff will just crack or snap if you turn the screw anti clockwise but exercise common-sense on how much force you apply.

Hope this helps,

FNF
 
Was this standard on 75's? :-|

I've adjusted the triggers on both my 85's and don't recall seeing any stuff on the screw

Alex
 
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possible that it was added by a very precise former owner to fix it at a set break

does it need adjusting?
without knowing what it is I would go carefully
could be nail varnish or anti tamper or threadlock or anything

you don't want to find out it has enough grip to snap the stud if you try to tighten or loosen it
 
75 85 are adjustable please indicate the allen screw you are looking at as others have said any type of thread lock is out of the norm on the front adjustment bolt/screw
tikkat3singlestagetriggwb0.jpg
 
Some people put nail varnish on the screws to stop them moving try nail varnish removed first then heat if it fails.
 
as others have said not a factory seal, the screw is a user adjustable screw one of the many good features of a sako,just pick it out try and stick a hot pin in it see if its nail varnish by the smell. if you have never smelt it heat the old girls fingers up on the grill (NO joking).
best of luck .



.
Paul - it is the screw labelled 1 on the diagram (the one accessible from the magazine well).
 
every sako 75 i've adjusted has had blue or red loctite type thread lock on the screw in question.

if you unscrew the cap head hex bolt that holds the trigger assembly to the action, grind down the diamter of the cap head, you'll be able to screw the adjustment screw further out reduce the trigger weight to about 1lb.

easy test to make sure your trigger is safe is to cock the bolt, put the safety on and give the butt of the rifle some good solid thumps to ensure it doesn't go off of it's own accord.

happy shooting
 
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