Originally Posted by Dstarver
I just sent a 243 rifle to be rebored to the 260 did I mess up?
Just curious - Why would you think that ?
A .243 can be rebored to any of the other calibers based on the .308 Winchester (.260, 7mm-08, .308, .338 Fed, & .358 Win), provided the barrel's thick enough @ the muzzle; and
the .260 Remington's the ballistic twin / modern equivilant of the venerable 6.5x55 Swede.