Misc shooters gtfih

I got a chitty 1991 rk62 from the batch and theres Unnoticable slack before pulling the trigger wich causes me to trigger in 1 pull instead of 2. I can get semi close to triggering but theres a little pull before the shot because if i try to get close the gun shoots & i mess up my shot.
Ive tried cleaning the trigger system but it wont work.

I got a shooting comp coming up. 5 shots standing, kneeling & flat. Everything from 150meters.
I have to shoot 48 points from 50 so 3x10s & 2x9s pretty much.
Last time i got 42 laying down, 43 kneeling & 40 standing up because of the ****ty trigger.

How to hit 10s with dis chyt?
1096 ng/dl