Heavy barrel Model 700 BDL in 7mm-08, the most accurate firearm I've ever shot. I bought the bare rifle in a pawn shop on a whim for $300, the owner had picked it up at a gun show. A previous owner evidently had sprung for a trigger job, and had bedded the action and barrel. I wasn't a fan of barrel bedding, but it definitely worked, at least in this case. Leupold Vari-X II 3X9X50.
Probably even more favorite is my 1895 Marlin, it has accounted for many deer in thick woods and adverse conditions and has always done the job. The 45/70 puts them on the ground. This rifle is surprisingly accurate for what it is, and even has a decent trigger.