Excellent thread.
1969, I was 12. Dad bought a S&W Model 28 6" barrel Highway Patrolman. This was what I learned to shoot pistol on with everything from .38 special ammo to Super Vel .357 Magnum. I shot that gun a lot, to the point where the action no longer cycled properly double action. I was not familiar then with gunsmithing so am unsure as to what was worn/broken. As a 12 year old you can annoy a lot of adults when you have no problem with N frame .357 recoil.
In 1973 I started on 1911s.
I am revisiting my childhood with 28s, 27s, 1950s K frame .22 4" etc... I really enjoy the level of work on these guns.
Current autos are more tolerant of 10K+ round/year training schedules. I believe this is true of GP100s and Security/Service Sixes as well but the level of work on the older revolvers is enchanting.