Re: length of over all finished bullet
Depends on the particulars. If the load was a maximum load, .010" shorter, and is now as you say it is, the bullet may be in the rifling,when the bolt is closed;this can increase pressures to a catastrophic level.
If the chamber is long throated, it may actually improve accuracy, with no other difficulties.
You could simply run the loaded rounds back thru the seater die, now properly adjusted for length, and push the bullet back to a correct OAL.
Hope this helps...
Don't start no s**t and there won't be none, Terry