I've never done the shoot one-clean one routine. With all the guns I've done 13,000+ groundhogs and 2400+ deer with, they still shoot great. Only worn out one barrel ever-2200 rounds through my 6.5/.284XP.
I pace myself when sighting in. Shoot slow to keep the barrel cool. I only oil the barrel after the first sight in session, they dry patch only rest of hunting year. Oil changes POA each time requiring another sight in. At end of year every year gun gets copper cleaned and bore curing with several of the products out there.
Worked last 44 years. Too old to change.