Benjamin Akela, not grouping vertically

Ya man, that power adjuster was not moving forward all of the way. It felt like it was running into something, I kinda forced it, and I felt a pop. Now the knob turn perfect and feels smooth and lubricated. Seems to be grouping perfectly fine now, although I have only 12 yards to work with in my basement. The gun has a ton more power now! Full power now is a night and day difference.