Daystate wolverine accuracy issue

Shooting my wolverine .22 out to 75 yards. Just to check accuracy and I can't get it to group at all. I tried several pellets even the jsb line and still every other shot was different. Barrel was clean before I shot and I seasoned 20 shots through it before I shot for groups. I did everything I could think of. Can someone help me out? I've had lots of issues with these air rifles. I've spent thousands of dollars spent on them. I'm not sure If it's even worth it anymore. There more of a hassle than anything. 
 
kyler, check to make sure that the pellets are not clipping the baffles on the shroud. A good way to check for this issue is to coat the baffles and end cap of the shroud with liquid white out (used as correction liquid when using a pen when writing). It is non-permanent and can easily be removed. If clipping is not an issue, and you have ruled out everything else, it might be your shooting technique. I am highly doubtful the problem is your scope as even a self-repaired objective lens on a Leapers scope was able to withstand my springer. 

DO NOT EVER TEST FOR ACCURACY USING A VISE! This will only make you chase POI forever. A gun - even a PCP - needs to recoil and vibrate in the manner it chooses to. A vise will only prevent it from doing so. In most cases, a vise will transfer the vibration it receives from the rifle during recoil back to the gun before the end of the shot cycle. 

I know it's a hard pill to swallow, but in order for a shooter to shoot with precision, the gun has to be "one" with him/her; that means the shooter must move with the gun together (from the gun's recoil), unless he/she is able to find a way to let the rifle shoot to the intended point-of-aim by itself. Upon recoil, the gun must not move in one direction and the shooter in another. This is why I choose not to shoot bench-rest style because I am much more able to consistently manage my rifle's movement. I am also more accurate this way. To shoot accurately via bench-rest is to make sure that you have everything set up precisely so that the rifle's firing cycle is consistent all the time. Personally, I am able to sense, or feel, rather, whether my rifle is held incorrectly when I am shooting without a rest.
 
Ok so I took my barrel off of my gun and shined a light through it. It seems to have a scratch on the inside of the barrel. I used a metal rod 1 time to clean it and I think that might of scrached it. Anyways my first thought was to shoot enough led through it till it fills the scratch. So I did just that. Today I shot well over 200 shots and the more I shot the better it got. I have lots of ground squirrels where I live. There's millions of them. They made good targets. 150 estimated killed today. My accuracy got a lot better. Shot a European starring at 104 yards it was the farthest shot of the day. I'll shoot for groups soon. And I'll post them. Thanks for the help everyone.