The ballistic equivalent to the 260 is the 6.5x55 - Very popular today, developed in 1891...
the equivalent to the 7/08 is the 7x57 aka 275 Rigby - designed in 1893....
Both +/- 120 years old....and doing fine today. No reason why the newer short action offspring will not be here in the 22nd century. Take a look at the 350 Rem Mag - since '65 - now nearly 1/2 a century old - ammo/brass/dies and rifles made today...or were very recently. Why - b/c those in the KNOW recognize it's value.
Lapua felt the need to tool up for brass...they must feel their is a future for the round. As popular as the 308 was/is and will be, there are MANY 308 shooters switching to the 260.
I think the 260 has legs...I chose my cartridges based on needs, and I do handload, but regardless, popularity is not the deciding factor for me.
If one LIKES a round and it does what they user NEEDS - then they should use what they want.
