Rem. 700

[jalewi]

I have been having problems with a Rem 700 30-06. It has about a 6 inch group at 100 yards sand-bagged. I have a bushnell legend scope on it and have been using remington factory 150 grain ammo. The scope mounts are tight and secure; the inner barrel looks good with a bore light. Should I send the scope back to the company to have it checked out? How can I further check the barrel out on the gun(especially near the distal end)? Anything else I should do? I recollect I shot the gun with 125 gr. low recoil rem. ammo last year and it had much better groups.
thanks for your help
jalewi