Thread: Run In / Burn In Process

What's the general view on how to run in a new gun, I have previously gone with the 5 rounds then clean allowing time to cool etc. between rounds and rwpeating for the first 50 or more rounds.

I have seen others run a slower process again with the first five rounds being fire clean fire clean before moving onto the above, also with various mentions of using a soft bruss down the barrel and a drill to remove any burrs (that one terrifies me)

And does this process change for an AR to a bolt action assuming both factory new.