So I've had the kimber out 3 times now. I did not do a "barrel break-in" consisting of shoot-clean-shoot-clean, either. First trip, shot 12 rounds. Went home, cleaned. Second trip 20 rounds, went home and cleaned. Third trip 27 rounds, cleaned, etc. The best I've been able to do is .75" @100 yds, which was my first 3 shots on my last trip using the precision hunter 143grn ELD-X's. Groups opened to 1.25-1.5" after that first group.
Now, I am not the greatest bench-rest shooter and a small, light rifle is a bit different to shoot than my other rifles weighing 2+ pounds more, but I'm satisfied so far. I think the ability is there to be a sufficiently accurate mountain rifle. I'll keep at it, and I think that ELD-X ammo is pretty good factory stuff, the gun doesn't hate it anyway.