What is typical factory quality? Re my Savage
I have a bore scope that gets used at least weekly, and I can assure you that the remington barrel they pulled is not a "typical" Remington barrel. I've no doubt that's it was exactly as Lilja said. I don't believe for a minute that this was an intentional stunt, just more of an opportunity that presented itself. If the owner had returned that gun to Remington (likely he would have had to point out the issue with the rifling) they would have replaced it for him. I've seen plenty of damn nice Remington, Winchester and Browning barrels.
Well, that may have been a particularly bad Remington, but I can tell you I personally have a Savage barrel that looks just as bad inside when scoped. The transverse tooling marks are even more prominent and you can see with the naked eye, sighting through the breach, that the lands have chipped edges, chatter marks, and are not uniform as they approach the throat.
Anyway, whether the average Rem barrel is better or not, the video does serve the purpose of illustrating "bad quality" vs. "good quality". I commend Dan Lilja for making this vid available.
"If the owner had returned that gun to Remington (likely he would have had to point out the issue with the rifling) they would have replaced it for him."
Don't count on it. Truly. I've sought replacement barrels from Springfield and Savage. In each case they ignored my request and returned the gun unfixed. I had to have the Savage set back and recrowned at my expense because the chamber and muzzle were so bad out of the box.
After fooling around with factory barrels for years, and wasting hundreds of hours on copper removal (I have a suitcase full of solvents), I've almost given up on factory barrels for anything I may shoot in a match or past 200 yards. Bad barrels, ultimately, are a waste of time, powder, and good bullets.
The best factory barrel I've ever seen is on my Pedersoli 45/70. Smooth as glass, no tooling marks, sharp lands, straight. It cleans up with 3-5 wet patches honest. The thing shoot sub-moa with iron sights and has won every match it has entered, yet never seen a brush... so I guess that shows factories CAN do it right--if they want to.