I've had both. The 257 didn't do anything the .2506 couldn't and went down the road. I haven't shot the .2506 in years (10+) due to having three 260s.....owning them made me realize how mediocre the .25 caliber bullet selection was.
Kaiser Norton
I also shoot a 1 in 8 .260 and agree on bullet selection
But...
My 25-06 shoots rings around my .260 with several loads. The worst grouping loads in my 25-06 are adequate for any hunting I may do, and the best loads are regularly 1/2" capable.
If my .260 shot like my 25-06, I'd prefer it for a lot of uses. As for now it's my bad weather rifle
Edit; Wish I had sent the .260 to Redneck like I did the Model 70 he made into a 25-06 for me.
