Thanks Mike. Those LatAm reviews were useful. They did mention the two-ton trigger (and its tendency to break), the nice stock, and the good accuracy. Plus the relatively mild recoil and silent report. They also mentioned the need to use a wrench to disengage the safety. Got the bugger anyway ... Decided to put my modest tuning skills to use and fend off the covid blues.
Sooo ...
- I polished all trigger parts (heavy duty sanding and polishing needed)
- bent the spring somewhat to reduce the tension
- filed down the seer to make for a crisper / snappier second stage. (Photo posted on Airrifle.co.za)
Also cleaned the usual gunk out of the barrel and lapped it with 4000 grain compound.
It shot very well at 35m. But I found the trigger to be still too heavy for a moitionless aim. So I decided to take a little more off the seer. BIG MISTAKE! The gun still cocked but it now went off if the barrel was shut too strongly. It also fired as soon as I disengaged the safety.Ā
Imagine a reverse trigger...
It became a quirky & dangerous gun, like in a western movie. Not funny. I was able to bring it back by extending the cut-out in the seer where it slides over its attachment pin. Hours went into this.
Another issue was the threaded pin that fixes the gas spring in the action. Pin is good quality but slightly undersized and not sufficiently tightened. So the spring slid back by a mm, blocking the trigger unit into the action. The trigger unit also has way too much slop in the action, you could wiggle it left and right by several mm.
I ended up making a bus out of thin alu sheeting from a pepsi can to shim the pin and threadlocked it with blue. Also shimmed the trigger unit with the (thicker) sheet from the bottom of a pringles box.Ā
The thing now shoots well, trigger is a crisp 2 stage but a little heavier than I like. If I had to count my time this would be the most expensive gun I own. Learned a lot though.Ā
