Some of you may remember that a few months ago I posted a few questions about my proposed spec for a 9.3x62 project. I have just received my updated license. It authorises me to buy one '9.3mm rifle'. This ,of course, frees me up to buy any 9.3 calibre rifle. ......my thoughts have turned to 9.3x64. Read an old Boddington article that rates it as a 375 equivalent; but I'm not clear what action size / bolt face it would require. The 9.3x62 is virtually a necked up 30-06 and therefore comparatively simple to sort on a standard action. Does a change to 9.3x64 introduce a host of problems (not just in terms of the rifle itself, but also in terms of ammo and reloading eqpt availability.) - and one further bit of nitty-gritty- I was planning a 22" barrel on a 9.3x62 -presumably a 9.3x64 would benefit from a longer barrel)? Any advice gratefully received! Thanks in advance.