Tuning Fx King .25 600mm

[Gunnermikey]

Hello all ,

I have some questions about my fx king .25 600mm

Fx king .25 (slugprobe - huma air transferport - huma air regulator- original hamer - tuning hamer spring (this ad the moment the setup )

To do >carbon barrel sleeve<>harmonic muzzle brake<> reinforced valve rod <> valve seat



113 bar/1638psi regulator pressure

Javelin gen 2 cal-251. 36gr 900/905 fps

The carbon sleeve I hear a lot of different stories about to glue it together or just put it in with out any glue

And I have some questions about the fine tuning of this fx ad this moment the slug are all over the place with in 50meter/54,68yd I’m shooting inside no wind or any thing so stacking shots must be a easy task butt it’s not happening I’m going from top to bottom from left to right ( I have a steady aim with the fx bagged it still does the same(it ad the knee point of the pressure )

So please help en learn me some new things because I wanna learn lots more about pcp

Thanks

And I own the

Bintac mcar .45

AeA Zeus .72

Diana 48 t01 .177

Any questions about them ask I will answer it

 

[Jlowe]

Slugs like to run fast in general. If they are all over the place at 905 fps, them bump it up to 950 or higher. If it doesn't work at those speeds then it's not for your air gun.

 

[Gunnermikey]

Slugs like to run fast in general. If they are all over the place at 905 fps, them bump it up to 950 or higher. If it doesn't work at those speeds then it's not for your air gun.

Hello thanks

I have been boosting the fx to over his max 1050 fps butt become even worse I have been trying different brands en weights butt no good results unfortunately in the beginning I head the problem with clipping in the silencer maybe it’s the liner what not good