"Correct me if I'm wrong but what might be called hunting or target ammo wasn't nearly as available as what we have today. "
Winchester Super-X was good hunting ammo. Remington Golden bullets weren't bad decades ago. Mini Mags were introduced in 1962 and provided an option.
"Cheaper ammo (i.e. Winchester Wildcats, Federal Lightnings, Remington T-bolts, etc) came in little 50 round boxes and we bought it in bricks (500 rounds). Same cheap kinda ammo"
That's more recent ammo. Does it get any worse than those brands? I only know which brands receive the most complaints year after year. Dynapoints were the exception it seems.
"I haven't seen anyone talk about time travel in this thread"
We're discussing decades of personal experience with rimfire ammo - including the current stuff. I don't know what you're going on about.