So i have a T3 in a 7mm-08 that i recently put into a B&C medalist stock. First time out to the range is was averaging 3/4" groups with a variety of handloads. The second time out the groups opened up to 1.5-2" so at that time i figured i would have it bedded. After a local gunsmith bedded it for me i took it back out and with the same handloads i shot some groups that where under 1/2" perfect problem solved.....not so fast. Yesterday i took the rifle out again and yet again it opened up to an average of 1.5" groups. I have checked everything as far as loose mounts which i have torqued to talleys specs and loctited. The stock is also torqued to 50 pounds as instructed by B&C. I only shoot 3 shot groups spaced apart every 3 to 4 mins and then let the rifle sit for 10-15 min as to not let it over heat. My handloads are all loaded to te same COL. The rifle is cleaned the same way after each time out and was broken in properly. I have never had a rifle that one day would shoot .5" and then the next shoot 1.5"-2" so i am stumped. Any help or recommendations would be appreciated.