Tuning Akela wandering POI/accuracy issues

What pellets are you shooting? What FPS?

I would check if all the baffles were present in my shroud (don't recall if there was a spring as well, I no longer have the Akela) and that they are aligned properly.

I have no experience with that rifle, but if the chrono shows no radical velocity variation, and the scope checks out okay, I'd remove the barrel and clean thoroughly with a rod and brush, maybe polish with JB also. In the process, you can verify that all the barrel and shroud attachments are secure. The gray streak you see is probably from a hanger in the finishing process. If clipping, I would expect no good groups, and some pretty significant flyers. I've had rifles demonstrate accuracy issues that did not obviously appear barrel related, but actually were, and a good cleaning resolved it. Good luck. 

My kratos was doing the same thing from the factory(clipping the end cap) so I had amazon send me a new one. After that I cut the shroud back to just behind the barrel threads on the old one and installed a DonnyFl to it and the problem was solved.

My Kratos would group great at 50 yards then it would shoot random fliers always 1.5" low. I finally inspected closely with my bore scope and there was a build up of lead in the choke area. With out the bore scope I would have never noticed it. A bronze brush and bore cleaner solved the problem. I did follow up with JB bore cleaner on the bore with extra attention to the choke area. 



I have to admit these Kral/Benjamin barrels are some rough looking rifling but shoot pretty decent. Over all I think they are pretty nice guns for the money.

Clipping is usually a constant. I would scrub the barrel and check the crown for imperfections. A jacked up crown or if the rifling just inside the bore is damaged can cause more clipping as the gun gets dirty. Then I would do my tape method and see where the pellet is existing the end cap.

Sorry the pics are out of order. Once you shoot, carefully press the tape back into place and see what’s what. I do this on every gun with a shroud that I purchase. It tells a lot about the manufacturer.