"Feasible"? Maybe.... 'Worth it'? No... You still have a factory barrel.. JMHO..
Not if he's going from a 243 to a 6.5, unless that was a typo?
Typo on my part, meant the 6 Creedmoor, but had 6.5 on the brain as that's what I've reloading for the past few days.
Anyway, just disregard the question. It seems the typos bring out the smartazzes, who otherwise wouldn't have much to contribute.
