Inconsistent groupings on Fx M4

Hogkiller
I did a test without the Mod. Still not good groups. Slugs may take a lot more effort than I want to do. I put the pellet liner back in and shot the Hades 44.8gr at 45 yards at less than 1/2" groups again. I'm happy. Maybe Johnsmith120 can take something away from this conversation that will help him.

I have an Uragan2 and took around 10 diferent slugs to find one that group great. And even the one that group great had to change the speed to get there. Some of the others looked like a shotgun patern or grouped and had some flyers. But with the Zan .218 (in my case) finally I achieved what I was looking for.

Maybe the problem is the ammunition and not the gun. With pellets you have good results... That said, it takes time and ammunition to get there, maybe you dont want to spend that.
 
I recently bought an Fx impact m4. It seems to be shooting inconsistently on a double stand setup (no I wasn’t holding it) when I was zeroing it. Would anyone know the reason?
Hello, I'm shooting at the moment with JSB Heavy .22 18,13 Grain at 50m

FX Impact M4 Extended 800mm 5,5mm on Pellet port (there's also a Slugs port )
75Bar
4 ringen zichtbaar
8 Macro wiel
2,5 Micro wiel

10 shots, 9 between 265 m/s en 268 m/s en 1 at 261 m/s at a temp. around 6 graden celcius
the square's are 1 by 1 cm .4 inch

50m JSB Jumbo Heavy Diabolo 18,13 gr 5,5mm.jpg