+1 on getting something else if you don't hand load. The .260 made a big splash when it came out a few years ago, but it seems to have been fading ever since. One shop around here still keeps ammo on the shelf but there is no selection. Not to say it isn't a good round, because it is, it was a wildcat round for a good while (I think Jim Carmichael developed it). It just had too much competition from well established rounds that would do the same thing, i.e. .25-'06, 6.5x55, 7mm-08.
'Merica: Back to back World War Champs