As mentioned, you will get several opinion's on this. I consider it more as to seasoning a barrel. Kinda like seasoning a cast iron skillet.
First 5 shots, each shot, clean then oil. Then 3 shots, 5 times, clean, oil. Then clean an oil every 5 shots 4 more times. At this point I'm done. It's just solvent's only after 25 to fifty shot's. I only clean, oil again if I know it's going to be put away for 30 or more days. I will give it a 1 stroke with a brass or nylon brush every 100 or so rds. I record all my shots on the bench. I don't worry about an occasional varmit shot. A data log is nice to keep around. But it's no good unless you use it.