Anyone know what the minimum outside diameter might be?
I have a 1917 that has had it's original barrel cut to 18.5", and being a handy little bugger, but me also having a surplus of 30-06's, I've had the idea of reboring it to a 9.3x62 or possibly a 400 Whelen.
I am not positive, but I believe the barrel was turned down somewhat to mimic a sporter contour, as the barrel seems thinner at the muzzle than a standard issue 1917 barrel would be at that distance from the muzzle.
It's sure not a pencil barrel...just not sure if it's got enough "meat" to allow a rebore.
If not, it can stay a 30-06 happily enough. Just figured my pre64 M70 in 30-06 has that cartridge covered. No need for two.
