FX Impact MKII setup help

[CBR400RR]

Hello,

I was looking for some tuning advise for an FX Impact MKII in .30cal with a 700mm barrel shooting JSB 44.75 grain pellets. I’m using the gun for hunting small ga e out to 200+ yards, what would be an ideal velocity?
Also what ES and SD should I be looking to dial in on the chromo? 
Could anyone give me some base setting on all the adjusters to start with?

 

[jorgemac]

860 fps has great balance in accuracy and economy air in my Impact .30.

 

[Spray1Mark]

With the reg at 170 and the hammer maxx'd out I get 980 with the 44's, who cares about shot count? lob those things out there like you mean it!

 

[CBR400RR]

What about the front adjuster, how many lines showing and what about the feee play on the adjuster for the hammer spring wheel? Also I’m looking to get around 900fps but keep the SD and ES as low as possible, any suggestions?

 

[Hyperdave]

While every gun is a bit different and should be individually tuned, I have my Impact 30 reg at 150 bar and nearly maxed (nearly zero free play) on the hammer spring with an ES less than 9. This yields around 890 fps/44.75 grain JSBs with the shorter 600 mm barrel. You should be able to get 905-920 with that longer barrel. With the front de-bounce adjuster, just bring it in clockwise until you start losing speed, then back it out a hair. In some cases, you will find this front adjuster actually boosts your max velocity as well.

 

[CBR400RR]

My FX Impact MKII .30cal with 700mm barrel, Bushnell Elite Tactical G2 6-24x50 FFP scope, Atlas bipod, Donny Ronin moderator, Side Shot billet .25 and .30 mag kits and a .25cal barrel kit

 

[Bob_O]

https://youtu.be/9K9uG2KOPt0

 

[Hyperdave]

My FX Impact MKII .30cal with 700mm barrel, Bushnell Elite Tactical G2 6-24x50 FFP scope, Atlas bipod, Donny Ronin moderator, Side Shot billet .25 and .30 mag kits and a .25cal barrel kit

That's a case full of the good stuff for sure!

Did you custom cut your foam for the accessories (the Ronin, bipod) or did your FX distributor pack it like that?? Every one I see has different cut-outs.

 

[mtnGhost]

Hello,

I was looking for some tuning advise for an FX Impact MKII in .30cal with a 700mm barrel shooting JSB 44.75 grain pellets. I’m using the gun for hunting small ga e out to 200+ yards, what would be an ideal velocity?
Also what ES and SD should I be looking to dial in on the chromo? 
Could anyone give me some base setting on all the adjusters to start with?

Depends on the wind. In general, for longer ranges you have to find the idea speed that you can shoot them before they drift hard from drag going into transonic. They might shoot perfect at 925-940 on a calm day, but drift badly with wind, so you'd want to dial it down. My R5 Long shoots them well from 890-900 in heavier wind, you'll probably get similar results with the Impact.

 

[CBR400RR]

I did the cutouts for the Ronne and the Atlas everything else was already there from FX.