What are the biggest changes over the years?

[higgins]

Lee Liquid Alox. Some don't like it, I do. There are other concoctions available that are similar and serve the same purpose. From what I read on here they work just as well, maybe better than, LLA; I haven't tried them yet so can't comment on that.

[dale2242]

SS wet tumbling for one.
I went from ladle casting on a Coleman pump up camp stove with single cavity molds to a bottom draw pot with multi cavity molds and I use a thermometer....dale

[MrWolf]

The internet allowing us to even have these discussions and comparisons on what works and what doesn't.

[wv109323]

The improvements I see as most beneficial are bottom pour furnaces, PID heat control, and more multi-cavity molds. Though not rocket science pre heating my molds on a hot plate helped me get good boolits much quicker.
Maybe more custom mold makers than before.

[woodbutcher]

All of the above.
Good luck.Have fun.Be safe.
Leo

[jeepyj]

For most of the reasons already listed that enables me to easily turn out a 1000 loaded rounds in an evening. So come shooting day I can pull the trigger as much as I want without worrying about running out of ammo. For me at least, in the days gone bye I couldn't keep up with ammo production that I wanted to shoot on a weekend with some friends