What could be the reason wye the Avenge-x POI shifts from left to right with a decrease in bottel pressure and wye it has shifted avter an refill
Air Venturi Avenge-x POI shifting from left to right with decrease in bottel pressure
- Thread starter J. Hanekom
- Start date
Haven't noticed this with mine. I have the .22 cal wood stock version.
Have you made sure everything is tight? All screws, shroud, etc are all good and snug?
More info of how you have the gun setup may also be helpful (any adjustments you've made, do you have a moderator installed, does it happen with different ammo, etc.)
Have you made sure everything is tight? All screws, shroud, etc are all good and snug?
More info of how you have the gun setup may also be helpful (any adjustments you've made, do you have a moderator installed, does it happen with different ammo, etc.)
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Bottle will slightly vary in size, depending on fill, extra barrel bands or bottle band-mounted bipods could have an effect. A chronograph will help diagnose if any internal conditions are involved. WM
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I have taken it apart and checked everything did not find anything out of place tho and have not hade the chance to shoot it again after putting it back together and zeroing it i do have a moderator on but i have always shot it with the moderator
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I know this is a very late response, but I have had that issue with mine as well. I have the Avenge X Tac with bottle. I have never tuned it. No need its perfect for me out of the box. (maybe one day I will tinker with it) I will share with you my own experience and thoughts on that. Believe me I hate POI shifts too! Mine seemed to occur horizontally only. I can see why (possibly) if also vertically. I am sure a lot more shooters experience the same but choose not to diminish their own rifle. Given my past background with real firearms (military grade at long range) some of those variables apply to PCP rifles as well. Assuming all hardware is tight and torqued to tolerances, for one sudden change in temp on rifle(i.e bringing it out on a hot muggy morning to shoot from a cooled storage area inside your home may cause shift. Metal contracts, expands and bends not to the naked eye but just enough to cause a tiny shift so the further you shoot out the more noticeable it is. Ever notice your Zero is not the same the next day? You go from dead center to maybe a mil off or so. Scope? Not sure about that one other than fog mist on lenses before shooting once it's brought out into the heat of the day. ( I now usually let rifle acclimate to the ambient temp outside before shooting. (30 min on the bench) I have zeroed my rifle at both 25 and 30 yards with a preference for 30 and within hours just sitting there a shift occurs as temp rises from 65 degrees to as high as 100. I would shoot several mags of ammo (100 -150 rds) in the morning after fresh zero leave outside a few hrs (weather permitting) come back and have small shift using the same ammo later in the afternoon! First thing I think of: Is my scope mount/rings loose? Nope. Torqued to specs. I can never come to any conclusion why this occurs. Ammo temp just like the rifle may be affected by surface and ambient temp. A person with a trained ballistic knowledge can better explain. This is obviously my own thoughts on why POI shift. It could be case by case, could be loose scope mounts, rings etc. I would love to hear others points of view on this. (good discussion) Guarantee you we ARE NOT ALONE! Those FX's and RAW's Daystate's suffer the same thing at some point. Its metal and its manmade. I have noticed over time that the longer the rifle and ammo stays in the same ambient temp during the day the less likelihood of any POI shifts.
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If it is Not a "clipping" issue with your moderator, and it is Not a dirty barrel, then I would suggest removing the barrel band and tossing it.
There have been quite a few guys mention this, including the guys at Saber and PA
The barrel needs to be free floating, if you have the carbon fiber bottle the expansion at refill is exacerbated.. simple solution is re,oving the barrel band..
I did it on my .25 after converting over from the terrible .177 .
The .177 is Way over powered in the Avenge X platform no matter where you set the power wheel and hammer spring tension...
I did a write up on that very subjet here on the forum.....
There have been quite a few guys mention this, including the guys at Saber and PA
The barrel needs to be free floating, if you have the carbon fiber bottle the expansion at refill is exacerbated.. simple solution is re,oving the barrel band..
I did it on my .25 after converting over from the terrible .177 .
The .177 is Way over powered in the Avenge X platform no matter where you set the power wheel and hammer spring tension...
I did a write up on that very subjet here on the forum.....
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I have a Avenge X 25 Cal Tac,(bottle version ) using a Donny FL Sumo and I have no issues. (love it!) I would take apart the moderator and inspect where the clipping occurs. If you ever used a self-cleaning pellets (not saying you did- I did that yrs ago) that is a No-No for guns with moderators. Those will clog the moderator because it disintegrates in the mod and stays there. The more you fire then the more obstruction you create and when the clipping first occurs the mod is already damaged and changed the accuracy substantially. I made that mistake years ago. Never again. Besides they don't clean a thing. Baristol and a nylon snake and pads is all you need. Before giving up on the gun, replace or borrow a moderator from a friend to test out and see if that helped. Let us know how that went. BTW I use the barrel band for stability and have no issues with it either.
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