A couple of all out Fclass guns I have had the pleasure of owning over the years, two of nine that were built by a collaboration between Paul Reibin, Mick McPhee and Ed Begg, all who have since passed to quieter ranges.
This one is an F/O rifle in 6mmBR.
This one is now owned by Lone Wolf, it's also an F/O class gun in 308
Both of these will keep them inside 1/2MOA at 1K if the shooter is up to the wind call!
Cat