N/A My biggest aggravation in PCP guns ..so far..

[cavedweller]

You make a good point on my Marauder. It is not quite as accurate as the Aveng X. My X is kinda...wow!! The only issue with the Marauder is I need to shim the back scope ring A LOT to get the scope I was using to hit at 25 yards. It is hard to find a base or rings with the 20 or so MOA to make it work right, unless I am missing a good product out there??

Eagle vision adjustable rings or sportsmatch

 

[Vetmx]

One more quick POI story that falls into the “many factors” thing I talked about. I have been working on a Zelos for a week or so. Finally got it done but there is always my final phase of testing. I do it to all my guns after the big stuff is complete. It’s the couple cold shots a day over the chronograph at a target. The target is usually at about 50% of the max range I plan to use the gun for. This testing can go weeks if I feel it’s necessary. Well this little Zelos with a kinda FX barrel was a first four shots wonderer. So I went down to the shop and made a few mods that I’ve done to other FX barrels. The gun still was poking some random holes. As I sat there pondering, it came to me that this gun is partially a crude copy of another gun that has proven to be hold, or bearing down on it sensitive. So I changed the way I shot it and it’s been fine. But up until today, if a buddy would have walked in the door and wanted to buy it, I would have said it’s being a stinker with its POI.

So now I could say the little Zelos is not a possible POI issue gun. No, I would be lying. Here’s why. There is no way I could bear down or shoot my Taipan or my AGT’s that would mess with my POI. There is no flex in their chassis.

 

[DaleR]

Before you totally give up, have you tried a barrel band from here, they are the only ones I use. https://blackartsdesign.com/ solid solution, especially for your Avenge X. They offer purpose-built bands that are engineered to reduce POI shift from bumps and moderator weight, and they’ve got versions specifically for both the tube and bottle variants of the Avenge X.

What Makes Their Bands Effective​

• TPU bushings inside the band act like soft centering guides—similar to the floating concept you have mentioned They stabilize the barrel without rigid clamping, allowing it to return to neutral after a bump.
• No grub screws—instead, the band clamps securely to the air tube or bottle using internal captive nuts and steel screws. That means less chance of asymmetric pressure or twist.
• Carbon-filled PETG construction gives it a good balance of stiffness and vibration dampening.

For Your Setup​

• If you’re running the tube version of the Avenge X, they offer a $36 band that fits that profile.
• If you’ve got the bottle version, there’s a $42 model designed to clamp around the CF bottle without interfering with the barrel’s natural alignment. I have one on my AEA 357 challenger and I have never had a problem with keeping zero.

These are well-reviewed in the airgun community for exactly the kind of POI stability you’re after—especially when you want to lean the rifle against a window frame and still trust your zero.

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got a band comming ..Thanks!