That which you can hit with a .260 but not the .308Conversely, what can the 260 kill that the 308 can't?
The difference between the 2 will often come down to the person behind the trigger and the amount of practice they put in.
Absolutely, but given shooters of similar skill levels, the one with the better cartridge will have an edge.
The last 3 years at the Steel Safari, high .308 has been 7th, 7th, and 5th place. These are exceptional shooters, but still the .308 provides a handicap that could not be overcome when shooting against similarly talented shooters with 6.5's and 7's.
Not really. It's readily apparent from the windage charts off the computer and from actual real match results over the last 6-8 years."Easier" is a matter of opinion.