hoot, clean and shoot again - and again, and again!
Seriously though, when I" break in" a rifle, the thing comes out of the action right off to make sure there is no oil in the bed, and the bolt is checked for excess oil.
Then it goes back together and I zero the rifle and check the group size.
I run about 5 then check it for fouling with Amzoil then Wipeout.
if the groups do not open up in say 5, 5shot groups, I don't worry about it.
if they do then I start checking stuff.
Cat