I'm going to attempt to keep this as short as possible. But the fact is, this thread opens up a big giant can of worms for me, and can't be answered with a simple yes, or no, for the following reasons below.
Since I started reloading more than 30 yrs. ago, I have made it a point to reload for every center fire I own. I'm so adamant about shooting only what I reload, that I won't buy the firearm until I can find the dies. I have not bought a single box of center fire in so many years, that I honestly can't remember the last time I did so. In fact, when someone gives me factory, I have been known to pull factory rounds so I can start fresh, with what I know will function 100% every time, at least so far.
My experience with factory ammunition has not been favorable, so much so, that I will not shoot it. I know others feel differently, and many will reload for the economics of it, yet trust their lives to factory for self defense ammunition. This is where I take a 180, I will not even consider trusting factory for self defense, and economics have nothing to do with why I reload, or why I ever started reloading. The reloads I carry for hunting and self defense, are the same reloads I shoot at the range, and practice with. And although this may sound expensive, or economically foolish, I mean since I do reload, I can still shoot full tilt jacketed ammunition for considerably less expense, than factory of a far lesser quality.
So to sum it up, I consider factory for what it is, which is to say, mass produced, rather than meticulously and precision made, one at a time.
GS