The .257 Rob AI is basically a .25 Creedmoor.
250AI
I wish I had gone with the 250AI over the 257Rob as it fits well in a short action.
In all practical sense, the 6.5CM is better than both.
Having owned rifles chambered in 250AI and 25 Souper, I'd take the 25 Souper all day, every day, over any other short action 0.257" cartridge.
The 6.5 CM is more practical than any short action 0.257" or any other 0.264" cartridge.
