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  1. Der_Berend

    FX Titanium Impact M3/M4 magazine

    Made a one-off from titanium for no other reason than a) I happened to come across an off-cut of grade 5 that was just the right size to make a magazine out of, and b) since I'd never machined titanium (or even stainless) before I thought it would be a good learning experience. Also, Blackbird.
  2. Der_Berend

    FX Impact M3 O-ring part number needed

    Hey gang, I found the O-ring that's most likely the root cause of a slow leak from the front reg I've been dealing with for weeks now. Problem is, it doesn't show up on FX's parts diagrams. Does anyone know which O-ring this is?
  3. Der_Berend

    FX Impact M3 bottles getting really hard to screw on

    Anyone else have the issue of air bottles getting really tight to screw on/off? To the point where I start to worry about the amount of torque I'm putting on the bottle itself. Mind, I'm still screwing the on with bare hands but especially if you can't get a good grip, for example when screwing...
  4. Der_Berend

    FX Brand new Wika gauge 25 Bar low

    Just installed a 300 bar Wika gauge on my M3, seems to be reading about 15-25 bar low. Previous gauge was reading 300 just fine but would be reading about 20-30 bar high by the time it got to my 1st reg pressure (120 bar). What could be causing this? And what are the chances of my Hill...
  5. Der_Berend

    FX Swedish gun, Swedish optic

    Aimpoint comp m4 on an Impact M3. Swedish combo! 🇸🇪🦌🌲
  6. Der_Berend

    FX Wiggle room between plenum and power block on Impact M3 when disassembled

    Hey good people, I did a bit of an oopsie during a hammer swap on my M3 and may or may not have attempted on unscrew the plenum with 100 bar inside. The damage seems to be just an O-ring on the plastic part towards the receiver, inside of the plenum (which has now been replaced) but I also...
  7. Der_Berend

    Most powerful ""tune"" I got out of my .22 Impact M3 so far

    Quotation marks because it's not really a tune but more of a "let's crank it and see how high it'll go" type of situation. Almost 100 foot-pounds with 40 grain ZAN .217's. That's on par with Eley Tenex (.22lr match ammo, 40 gr @ 1040-1080 fps ). Not practical at all considering all of the 5...
  8. Der_Berend

    Made a aluminum 34 shot .22 M3 mag

    Still some small things to tweak but it cycles reliably. Fits up to 12.2 mm long slugs so it handles 40 grainers with some room to spare. The housing is made from 6082-T6, the rotating pellet-holdy thing is made from delrin (which is a dream to machine) and the top cover is made from perspex...
  9. Der_Berend

    The loudener

    Because everyone and their mother is rocking a suppressor.
  10. Der_Berend

    FX Impact M3 trigger slop

    The trigger on my M3 has a little bit of slop from one moment to the next. There is a bit of take up of free movement which doesn't reset after I pull the trigger. I had to take out and reinstall my trigger a few times to get to the regulator and I noticed it after the last reinstall, so it...
  11. Der_Berend

    Impact M3 slug kit installation, some minor problems and quirks

    I just installed the slug kit in my .22 M3. Tungsten hammer, lighter valve spring, rubber ball, pin probe. I think I may be doing something wrong because it's quite difficult to turn the valve adjuster any tighter than line 3. I'm running an 800mm slug barrel with 180 bar 1st reg/160 bar 2nd reg...
  12. Der_Berend

    M3 2nd stage reg removal?

    Got a leaky 2nd stage regulator. It's a pretty slow leak, about 10 bar per hour. Regardless, gotta fix her. There's approximately three million videos on Youtube on how to remove the 1st stage reg (front, where the bottle screws in), but I can't find instructions on how to remove the 2nd stage...
  13. Der_Berend

    I have achieved 1377 nirvana

    "A transcendent state in which there is neither suffering, desire, nor sense of self, and the subject is released from the effects of karma and the cycle of death and rebirth. It represents the final goal of a Crosman 1377." Bill of materials: steel breech extended probe steel pivot pin...
  14. Der_Berend

    FX Impact M3 pellet port vs. slug port air efficiency?

    Is there a difference in shot count between using the pellet port or slug port for a given velocity? They probably included two transfer ports for a reason, so I'm curious what the benefit of using the pellet port is as compared to just using the slug port even in tunes where the transfer port...
  15. Der_Berend

    Hill handpump QC issues?

    Bought my first PCP in June this summer, with a Hill MK2 spartan to charge it. Worked good until a month ago, when it seized up. Turns out the little O-ring on the pump head was got borked. Ok, fair enough, maybe I shouldn't have charged my 0.8L airsoft HPA tank with it. So, me orders a seal kit...
  16. Der_Berend

    Tuning Stock FX Impact M3 .22 600mm balls-to-the-wall tune for heavy slugs?

    Not talking about accuracy or even basic common sense practicality here, I strictly want to see the biggest number I can (energy-wise) on the chrony because big numbers are a lot of fun. How do I "tune" to get the absolute maximum muzzle energy out of my very stock .22 M3? The max I've managed...
  17. Der_Berend

    Aluminium standard FX magazine housing

    Not content with the fact that my €2k pew pew came with a magazine made from plastic, I made one from 7075 on the cnc. The model is this one from GrabCad with a few minor tweaks because of my machine's current tool setup (and because round endmills maketh no square holes). For now it's just the...
  18. Der_Berend

    FX Impact M3 slug power kit vs. stock shotcount?

    Simple question from a very fresh M3 owner: is there a big difference in efficiency/air consumption moving to a slug power kit?
  19. Der_Berend

    Hill MK2 Spartan piston seal

    Does anyone know what the dimensions and the material of this pump's piston seal is? Mine has a tear in it and needs replacing. I've ordered a MKII service kit but apparently the MKII and MKII Spartan use different piston seals. My dial calipers got me to around a 6mm outer diameter with a 2mm...