Slightly off topic, but I'll try ( related the "how a 9.3x62 handles with respect to barrel length" comments)
For you who have done it, or would do it again to "make it better", and were going to rebarrel (not rebore) a bolt action - let's say going from a 30-06 to 9.3x62 - what muzzle diameter and taper would /did you chose? For 20". 22" or 24" long barrel?
