Looking for the best options for hunting bullets in my 260. Been using Sierra smk because they have great accuracy but want something that is accurate (like the smk) but suited for hunting.

Used for whitetail deer (120-150 lbs average)

Looking for something reliable to 600 yards.

I run a 338 LM for these distances but also have a 260 along with several buddies who have 260's. I know other cartridges are better suited for that distance but let's just keep the discussion to the 260 options for now