Mac,
If it would shoot 1/2" groups with the 115gr BT's. I think you need to find your lost load data. The 1-10"twist should handle the 115gr pills fine. A good bedding job will help in group consistancy.
One load that shot good in my 25-06 with the 115 gr Nosler BT's, 48grs IMR4350,& CCI 200 primers.

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