I wouldnt recomend sleeving a level 10 bolt. it you weaken the shrink fit of the power tube pin it will come out of there like a tiny steel dart.
Instead of messing with the bolt at all i would just borrow a breech from someone with a working one to confirm the issue, then just buy a new breech. or beg for a warranty replacement. they *should* be interchangeable barring the deed port location issue.