I can relate....
Back in my early years .22's (short, longs, long rifle) were 50 cents per 50, $5.00 per 500 count brick.
.410 ammo was between $2 - $3 dollars per 25 count box. 2-3/4 inch,12 gauge heavy field loads for squirrel, rabbit, pheasant, quail was around $3.00 per 25 count box.
The popular centerline ammo: 30-30, .243, 30-06, .270, 7mmRM, was $3.00 - $5.00 per box of 20 rounds.
Lead for making round ball and conical bullets, using Lee bullet molds, for black powder rifles was free to 10 - 20 cents per pound.
Fast forward to present day....at today's ammo prices vs back then. I still shoot a lot. But I hate to think, I don't want to think, of how much I'm spending, even reloading my own ammo, to consider how many /much ammo I have shot over the years (ok, decades). But seriously I'm sure it would be a lot more than one 5 gallon, or thirty 5 gallon, buckets, not including all the ammo, foreign and domestic, I shot up during my military years.
Crying in my drink.....looking back.....If I had a nickel for every round I shot, I'd be a billionaire, if not a multi billionaire.
FYI, I Just loaded up for another range day. I generally plan on shooting 100 rounds per firearm, at a minimum 4 firearms. I may break out my EDCs that'll be another 20 to 100 rounds per firearm, but I'll only shoot 2 or 3 of those firearms.
Shooting is the fun part. Not so much fun cleaning several firearms at one time.