fx dreamline change poi

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ouistiti

Member
Jun 22, 2021
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france, France
hello from france.

my fx dreamline classic 22 with 500mm barrel change poi.

i nstalled fx barrel band it improved a little but the poi change time to time.

i haven't made any settings yet,setting are factory settings.

my riflescope is ok .

what to do to slove this problem of poi which changes.

i use the pellets jsb exact jumbo heavy 5,5m cal 22 18,13gr the speed on my caldwell chronograph is :266m/s.

thanks for you help.



jp
 
JP;

I also have a 22 Dreamline Classic with the 500mm barrel. I had issues with Point of Impact (POI) changes. Everytime I removed the moderator, or put the gun in a case and traveled the POI changed. I installed a carbon fiber shroud from Ernest Rowe that allows me to put the barrel / liner assembly in tension. This modification fixed my issue with wander POI. Good luck getting your gun stabilized.

George
 
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Are the pellets grouping well when the POI shifts? In other words are the pellets looking like a shotgun pattern after it shifts or are they making small groups but just in another spot on the target? Do you have a picture of the target you put holes in look at? The more information you provide the more people on the forum can try to help.
 
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JP;

I also have a 22 Dreamline Classic with the 500mm barrel. I had issues with Point of Impact (POI) changes. Everytime I removed the moderator, or put the gun in a case and traveled the POI changed. I installed a carbon fiber shroud from Ernest Rowe that allows me to put the barrel / liner assembly in tension. This modification fixed my issue with wander POI. Good luck getting your gun stabilized.

George
Click to expand...

We must have been responding at the same moment. How about you? Before you fixed the issue were your groups small but just shifted?
 
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the group are small and just shifted.the grouping are about 2,5cm for a shooting distance of 35 meters.the speed of the pellets is around 266m/s with jsb 18,13gr.

the poi may not move on one or more different days and it changes without moving anything.the shots are always made between 200 and 100 bars, never below 100 bars.these are the factory setting.

i always shoot tthe same way on two bags.front and rear support.

the silencer is a donny sumo 





the carbon fiber shroud from Ernest Rowe is the same fx carbon fiber barrel sleeve from huma air?
 
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the group are small and just shifted.the grouping are about 2,5cm for a shooting distance of 35 meters.the speed of the pellets is around 266m/s with jsb 18,13gr.

the poi may not move on one or more different days and it changes without moving anything.the shots are always made between 200 and 100 bars, never below 100 bars.these are the factory setting.

i always shoot tthe same way on two bags.front and rear support.

the silencer is a donny sumo 





the carbon fiber shroud from Ernest Rowe is the same fx carbon fiber barrel sleeve from huma air?
Click to expand...

I don't know if the shroud is the same or not but I doubt it as Rowe makes his own add-ons I believe. As for the POI shift without moving anything, have you chronographed the rifle yet to see if there are fluctuations with fps? I had a regulator a while back that was acting up and it caused POI shifts however if was shot stringing more that lateral. Do you have a picture of the target?
 
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My Dreamline maintained tight shot to shot groupings, the location of the groups would wander on me.

The Carbon Fiber (CF) shroud is not the same as the CF sleeves FX and Huma sell for glueing to the liners. The CF liners replace the steel tube and O-ring assembly inside the shroud. In fact you can use the CF liner inside Ernest's CF shroud / barrel tensioner. That would probably be the ultimate for Dreamline barrel assembly stiffness.

George
 
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