New Cyclone .22

[koljo]

Thanks, pigmalion, for sharing your most interesting experience. So far I'm happy with the support just resting on the cap of the air reservoir, which is attached to it only with the shorter of the two screws. By removing the longer screw, the support is free to slide forward and backward but is still there as a guard against accidental knocks on the silencer. This way I have not observed any shifting of POI. Prior to buying the rifle I asked Tobias of Hurricane if he would advise me to get one with a shrouded barrel but against his financial interests he said accuracy would be slightly better without the shroud.

BTW what exactly is a "glass bedding":? ? Would you please elaborate.

[pigmalion]

I have the old model of the barrel clamp, only fits in the end cap of the bottle.
Last summer, when I was in struggle with my shrouded W&S Beech stock Cyclone, I suffered some huge lateral changes in POI, for the reason that I mentioned above.
But this fhenomenon, although was very spectacular, was too very soon identified and solved.

The very difficult thing was to improve the accuracy from 2.5 cm c-c at 50 yards to 1cm c-c ( five shots groups). and the last two things that I had to do to achieve this goal were:
- 1 Glass bedding.
- 2 select pellet batch.
I found that the clearance between the action-bottle and the stock, was the origin of a little vibration during the shot, making the groups wider. I solved that movement or vibration with the glass bedding.( If you have a look at the web, you will find a lot of information about it, referring to center fire rifles or rimfire rifles, not for PCP's, but it works for the Cyclone too).

To achieve this accuracy, was necessary to set a BTAS reg into the bottle, because the standard Cyclone is not regulated.

I found very important too, a Harris bipod at the front, and a rear sand bag.

I think that a shrouded barrel can be as much accurate than a standard one.
The shrouded barrel floats over one extra o-ring, between the barrel itsef and the shroud, so, there are two o-rings, one between the barrel and the shroud, and another between the shroud and the barrel clamp.


I take care of:

Canting error.
Parallax error.
Trigger hardness.
Clean the barrel after some amount of shots ( if you make a break in and or bore lapping , the polished barrel retains less lead).
No wind.
I have a Leapers mini 3-12x44 lateral paralax knob( I like this scope, is light and has enough magnification for targeting).

I do not find important to weight the pellets.
I think that the magazine is compatible with extreme accuracy, only take care of damaged pellets.

The synthetic stock is very light, accurate enough, and very practice for going around with it without fatigue( Is possible to drill the front of the stock, for assembling a bipod or a sling, if you use a short screw) . Aesthetically I prefer the wood. I accept the fish scales and rosebuds of the W&S stock, I would prefer a more "sterile" design, just functional, like the Schultz&Larsen stock or C S stock. Anyway, I admit that the W&S stock is really comfortable, beautiful, and works perfectly. I will test the walnut one soon .

Regards.

[koljo]

pigmalion, I've wanted for quite some time to say THANK YOU for your most interesting post on the accuracy problems with your Cyclone. Apart from the odd flier I've been happy so far with the performance of mine. However, the fliers are sometimes more than I'd like them to be, so I've started to follow in your steps in the pursuit of improving the consistency. I hope to be able to report soon on the results of my extended tests.

Kind regards,

[pigmalion]

OK Koljo.
Tell us about your results.
Is nice to see the experiences, equipment and groups of all of as.

[koljo]

Here is my latest Cyclone accuracy experience. As I was trying to eliminate the causes for the ever increasing number of fliers, I suddenly realized that the sound level of my gun was progressively going up while the number of shots per fill was going down. Surely a case of air loss, but not exactly obvious where from. Finally the "guilty" part was located - a missing o-ring in the breach. It had most probably been broken and then pushed out by a pellet. Tried to put a new one in without dismantling the barrel but couldn't do it. Off came the barrel, then it was much easier. After that the shot count and accuracy were back to normal. Then I got worried when I came across the following review about an FX gun in Review Centre: jams, doesnt cycle all rounds very often without jamming, constant problems with seals leaking, O ring in breach breaks often, fill port often leaks air. suggest using only jsb exacts in this airgun

Has this been the case with any of your guns, mates? How often did you have to change o-rings? Are there ways to prolong their life or is it better to replace them on a regular basis? I also have problems with the magazines (I bought 4) Had 2 jams and quite often I have to fiddle for a while before the pellet is pushed into the barrel.

[Graeme]

I've not had that problem myself but having noticed yesterday that the O'rings on my cocking handle were knackered I'm beginning to wander if the O'rings are of low quality ?
Anybody know what grade of O' ring to use for the best longevity ?

Also are you meant to lubricate the breach probe o'ring ?

[maxfusion]

I would think the O-rings on your cocking handle will be degrading because of oils from your skin
it shouldn't affect the others in your rifle as they're not getting handled
oils are not good for rubber, hence the perishing...

For lubrication I would use a good quality silicone grease as this won't react as badly with the rubber as mineral based greases and use very sparingly too

/geekhatoff

[ian johnstone]

Agreed, but also add-in the effects of UV on rubber - these parts were not designed for an outdoor life!

KOLJO - that 'review' you saw exemplifies all the Good & Bad points about the Internet - its all too common for people to type in 'some stuff' hit return, then head for the hills.
They are 'anonymous' & often provide no evidence whatsoever..

Hey Ho...modern values eh?

FX air rifles have no worse (or better) reputation regarding 'O' ring life, than any other PCP brand, its just Physics!

Regarding the mag. indexing issue - I 'accurise' the mags with my finger upon insertion...ie. I rock the mag back & forth with my finger to obtain the correct seating when I change them.

[rui de castro]

koljo mentions that jsb´s exacts are the ones to with, I agree, but recentely I came across the new jsb´s aparentely made for cometa airguns, & I can tell you , they´re definitely an improvement over the exacts, everything looks the same, although the skirts feel harder. the tin has the cometa logo plus id´s the pelletes as jsb´s, but somehow, I find them more accurate at 50/65 mts with my fx cyclone .177 fac, & on my prosport .177 fac, & the .22´s are just really really good on my two wh 100´s fac. should try, you will be amazed. rui de castro

[koljo]

ian, I do the same as you when loading the magazines. Sometimes it's easy, sometimes it takes me as much as 8-10 seconds, but I haven't been able to detect a pattern. More like a trial and error job until the first bu**er is slotted into place.

As for the O-rings, I've read somewhere that they should be very lightly oiled" with molykote grease. Is this the best way to prolong their life and how often should it be done?

rui de castro, where can one buy the "cometa" JSB's, I'm curious to try them?