The 7000T is basically a hot-rodded Model 70/795....Heavy Target barrel, two-stage trigger, etc...
First, what ammo are you using...if you are using Remington Golden Bullet or Federal Bulk...there's your problem.
With the 7000T in particular, you should be using Aguila Subsonic...or other match-type ammo.
Second, how often are you cleaning it, what are you using to oil/grease with?
Third, check your buffer for cracks.
Fourth, check your extractor/ejector springs.
Fifth, PICS, man, PICS!!