FX Impact Sniper .22 - Recommended Pellets/Tune

Jump to latest Follow Reply
R

Regaj

Member
Mar 24, 2023
6
2
Warrenton, VA. USA
Rank newbie here. Lifelong (firearms) shooter and handloader, but haven't shot an airgun since I was a kid. Have an FX Impact M3 Sniper in .22 inbound, with expected delivery in a few days.

I ordered several tins of JSB Redesigned Monster Pellets (25.39 gr) along with the rifle. Anyone have any tuning suggestions (for best accuracy) for those pellets with that rifle?

Any other .22 pellets or slugs, with tune configs, that anyone might recommend (again, with best accuracy in mind)?

TIA. Looking forward to this next adventure in the shooting arts!
 
You have a well proven combination to begin with. There have been reports of inconsistencies with the .22 25.39s from tin to tin or batch to batch. 970 FPS seems to be the best speed for them.
The most consistently small groups I have personally achieved were with the .22 superior heavy liner and the NSA 31.2gn slugs in .2165 at 1000 fps. You may need to install a heavier hammer to reach 1000 fps with slugs.
 
Last edited:
  • Like
Reactions: Regaj
Upvote 0
From FX info: dont go higher than 160Bar on either regulator, and you want 20-30Bar differential from first to second. Id try some Nielson lower weight slugs assuming you have an STX Superior liner and not a heavy version. Other than slugs JSB and FX pellets would be my first choices. If you havent already, be sure to watch the FX Ernest Rowe videos on how to start with a general tune. Slug speeds usually are best in the ~900-1050fps range, and pellets dont usually like to be pushed too fast ~800-880fps.
 
  • Like
Reactions: Stone02 and Regaj
Upvote 0
Regaj said:
Rank newbie here. Lifelong (firearms) shooter and handloader, but haven't shot an airgun since I was a kid. Have an FX Impact M3 Sniper in .22 inbound, with expected delivery in a few days.

I ordered several tins of JSB Redesigned Monster Pellets (25.39 gr) along with the rifle. Anyone have any tuning suggestions (for best accuracy) for those pellets with that rifle?

Any other .22 pellets or slugs, with tune configs, that anyone might recommend (again, with best accuracy in mind)?

TIA. Looking forward to this next adventure in the shooting arts!
Click to expand...
Same rifle. For that pellet I had good luck with:
150/ 109/ 4/ 3.75/ 4 3/4
1st reg/ 2nd/ macro/ micro/ valve
For a velocity of 970 fps. Tried other velocities from 900 to 1020 but this was best. Couldn’t miss at 50 yards. + 3 on macro for slugs around the same weight.

555BAC3E-4131-46F5-815C-608921322F4E.jpeg
 
  • Like
Reactions: talha.rao, SubutayHan, Stone02 and 1 other person
Upvote 0
carlos_hathcock said:
Same rifle. For that pellet I had good luck with:
150/ 109/ 4/ 3.75/ 4 3/4
1st reg/ 2nd/ macro/ micro/ valve
For a velocity of 970 fps. Tried other velocities from 900 to 1020 but this was best. Couldn’t miss at 50 yards. + 3 on macro for slugs around the same weight.
Click to expand...

Thanks for this. I had to go pretty much full throttle in order to get to 970 fps (R1 = 150; R2 = 120; Macro = 16; Micro = 5; Valve = 5.5).

Groups at 50 yards were pretty awful throughout the lower 900's. They tightened up quite noticeably as I approached 970.

I still need to refine this. And stretch it out to 100 yards to see what kind of legs it has. But for the first time with this pellet I feel like I've got a good starting point.

Thanks again.
 
  • Like
  • Sad
Reactions: Gnives50 and talha.rao
Upvote 0
I have a 700mm STX barrel kit recently installed in my FX Impact M3 .22 cal and I need to shoot (JSB 25.39) pellets for a field target Grand Prix. The FX originally came in .35 cal, so I need to adjust both 1st and 2nd regulators. Will the Tuning Recommendations above work for this barrel length? I'm new at this game too so I could use some guidance, thanks for any assistance you can provide.
 
Last edited:
Upvote 0
You must log in or register to reply here.
Top Bottom
Back
Home
Forums
Resources
Menu