Around 40-45yrs ago, when Barnes CR-10 copper remover product was released, the labeling on the bottle stated it was safe for use on all steel bores. It wouldn't hurt any steel bores.
I rotted the surface of a .284 chrome moly bore with that first bottle of CR-10 by leaving the solution in the bore overnight. I might have left it in there for like 36 hours. The bore looked like it was coated with hoar frost and constricted to the diameter of ~ .257 bore.
I never called Barnes. But a year or so later, the next time I saw a bottle of Barnes CR-10 on a store shelf, I read the product use instructions off the label and saw that the instructions had been changed to state do not leave the product in the bore for longer than 10 or 15 minutes.
Most shooters now know ammonia-based copper removal solutions can corrode a bore if left so long as to dry out in the bore. But... I didn't know that when I read the instructions on that first bottle of CR-10.
I was pretty bummed. I cleaned the bore as best I could with bronze brushes. The bore surface still looked like sandpaper. So I decided to shoot some bullets down the bore. Then cleaned the bore again. It looked better. Like a finer grade of sand paper.
I got lucky, in that this barrel still shot pretty darn good. So I still have and use that barrel/rifle. The bore is still pretty rough looking. Surprisingly, it doesn't collect a lot of copper.
If you've hung in there this long... still reading this Post... the point of this story is what???
"Accelerator might be in need of revised product use labeling / instructions."