My 9,3x74R Chapuis shoots farther apart at 300 yards than at 100 or 200 yards. The right bbl hits on the right and the left bbl hits on the left.
With 286 Nosler Partitions, if the right bbl is adjusted [actually the scope is adjusted] to where it hits point of aim at 300 yards, the left bbl hits 3 inches left and 3 inches lower.
The composite group is 5 1/2 to 6 inches.
The 286 Woodleigh's hit @ 7 inches apart, the left bbl hits 4 inches lower.