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FX  .177 Long Range performance

After much experimentation with FX Dreamlines and other Crowns with ho-hum accuracy, I finally got some really promising results with my FX Crown MKII Saber Tactical. I had a .177 600 mm barrel that I tried in another Crown that didn't seem to work well for me, so I put it in the Saber model that I was using for 100 yard shooting in 22 cal. I left the reg setting the same (140) and installed a Huma dual transfer port. I was able to squeeze 1020 fps from JSB 13.4 KO slugs and over 1100 fps with 10.3 slugs. I also tried NSA 12.5 and 15.0 gr slugs. The KO 13.4 gr worked the best when I turned the power wheel from Max to the next lower setting achieving 985 fps. The other slugs were not too good. At 100 yards, methinks this works pretty well for a .177 rifle. I can't wait to try some ZAN 13 grainers too.

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impressive

Impulse Air Fix Kit

Yes, I have. It fits the hollow FX moderator like a glove and appears to be very well made. Did I notice a massive reduction in noise level over the hollow FX moderator...no. But it did produce a moderate decrease in the noise level of each shot. And it has the little notch vents at the top of each cone to allow a last instant of air to escape to help in air stripping and pellet stability.

Moderators are both about decreasing the noise level of each shot and stripping the air trailing the pellet to help with stability of the pellet as it leaves the muzzle. It looks like the FIX Kit has made a good attempt at that.
Thanks for your input!
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GX CS4 Lube Information Update

I also emailed Bill and asked about filling the piston recess with grease. He confirmed that was fine. The admonition from GX was for putting grease ABOVE the piston. A little dab will do.
Not sure what you mean here? The grease pot goes into the same place as the air inlet is, which is on the outside of the first-stage piston. It is then spread & sucked into the other stages along with the air.

If by "piston recess" you are referring to the cavity between the first piston and the outside cylinder wall, that is exactly where the grease pot and air go.

Alkin W31 Priority Valve Problem.

Yes, there will be some axial movement with the part you circled in red in the second photo in post 29. That motion relates to the opening and closing of the PMV. Although you will feel a lot of axial movement, in actuallity it only moves a very tiny amount when the system is at operating pressure.
I have included a photo of the assembly order of the cap.
The copper washer goes into the cap, then the spring, then the brass piece goes into the ID of the spring. There is a depression in one side of the brass piece that sits on top of the pin in the top portion of the PMV. Being you have to assemble it sort of inverted, you can put a dab of grease on the brass piece where it inserts into spring to hold it in place. Same goes for the copper washer to either hold it in the cap or on the top of the spring. Then tighten the cap to the desired pressure or dimension you previously measured before disassembling.

Looking down into the top of the PMV the top of the pin should be relatively flat. The depression in the brass piece sits on that pin.
The last two photos are of my PMV. Your PMV has to lines coming out of it, mine only has one, might be because you have auto shut down.
I sent you a PM.

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N/A  Airgun Air tube Maintenance?

Take a block of wood, and using a pair of dividers scribe the diameter of the bottle or air tube, cut out hole, slice block in half.
On each half take about an additional 1/4” off on the sides with the half circle cuts.

Now you have two blocks each with half rounds to place on bottle, tube, or whatever that’s round that you can now clamp on a vice so both hands are free.

Cold hammer forged barrels

Zero rust on my TJs. Oiled or not. My other steel barrels rust like it's a requirement of their continued existence.
Mine don't rust either,even after I polished outside to shinny finish. I have fx liners as accurate,but they'll not shoot both pellets and slugs as well. With the liner,it's one or the other real good. The tj has certain ones it likes extremely well,but those all good when you find the speed for that pellet or slug.
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Airgun Technologies  VIXEN Where is the restrictor on the sub 12 ft pound version

So apparent the specialist gun tuners improve the shot count and FPS variation by removing the restrictor in the sub 12 ft pound models and simply adjust and balance the Regulator and hammer spring tension for more efficient air use and consistancy of around 11.5 ft pound. But I cannot find where this restrictor is located on the Vixen. Any of you guys now please?

CS4-I Portable PCP Air Compressor info

Perhaps look down two threads below yours before you post?

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