Help, I have a custom 270 WSM (buildier is now gone). Shilen Barrel, Mc Millan stock, Remington Action. I have tried numerouse reloads, Nosler BT, Nosler Partition, SST, Accubond, Berger VLD, HSM loads, etc... I have tried all the tricks I know, shims, resonators and I just can get this rife to consistantly group, it groups around 1.75 at best. Can get some decent 3 shot groups arond under 1.00. This is unacceptable as a custom rifle that should be a semi long range shooter. The rifle is an ultralite with a slim barrel contour. 1. Should I just rebarrel? 2. Who to rebarrel and what type of barrel, thinking carbon to stay lite, suggestions? I am in Phoenix, AZ. 3. What caliber, 7mm WSM or 300 WSM, This was built for a lite gun, for sheep, goat and hunts that require a lot of packing, its topped with a Leupole 4.5 x 14 x 40 with Kenton dial.