False advertising - that's what I'd call naming this thread "Recent discussion about oversize bullets".
It's more like, "What happens when you do something stupid with guns" or "Firing the wrong ammo in you rifle".
I must have missed the oversized bullet discussion below, but I do all the time, when it is concerning cast lead bullets. In fact, it's more preferable to shoot cast .001-.003" oversize. Go undersize (unless it's soft lead, low velocity) with the diameter and you are mostly asking for a leaded bore.