Think there'd be much difference between a 130 Accubond and a 125 Partition out of a .260?
I get better groups from the 130 grain ABs than I do from the 125 grain Partitions and the less expensive 129 grain Hornadys shoot to the same POA, allowing for a less expensive practice option.
I may be the exception, but the 100 and 140 grain Partitions have always shot better groups for me than the 125 grain Partition. I am a big Partition fan, but the 125 grain 0.264" has always disappointed me, no matter how much I wanted it to work, it was never quite as accurate as the 120 grain BT, the 123 and 129 grain Hornadys, and the 130 grain AB.