Before I went to through the effort of pillar bedding, I'd double check to make sure that all of the obvious culprits aren't the problem. Stuff like the bore being clean, the muzzle properly crowned with no damage or defect to it, all screws tight, scope not defective, etc. Then, with that out of the way, I'd be inclined to send it out to Remington/Marlin for warranty claim. As good as mine shoots, if I bought another that performed like yours is doing, that's how I'd handle the problem. I don't typically see pillar bedding as creating accuracy where none exists, but rather as a means of getting consistancy where it does.