A friend and I each bough new Encore barrels in .300 Winchester Magnum. We both put Burris Euro Diamond scopes on them, with the Burris double dovetail mounts. Neither rifle will hold a 4" group. We've tried every brand of 180 grain bullets possible. And NO, we do not want to shoot 165 grain bullets. We specifically bought the rifles to shoot a heavier grained bullet for big game, but after seeiing the groups, can not trust the rifles what so ever. Has anyone experienced the same problems with a LARGE caliber T/C? This is quite dissapointing considering the rifle were not really that inexpensive. If I knew they were going to do this, I would have just bought 2 Remington 700's. We have the exact same problem with our muzzleloader barrels. They will not hold good groups at 100 yards. Now I'm hearing of all kinds of people having problems with groups using a T/C. Can anyone tell me if they've had similar problems. I may have to return the barrels to the manufacturer. I have many rifles that can hold sub 1/2" groups, and bought the rifle for the purpose of breaking it down to go on hunts. This is totally unexceptable to me.