I have loaded and shot up a ton of it.
I loaded up some .380 years ago, and those shot well. I sold the dies, and now I have a 1908 Colt. Go figure.
I am considering doing up some more, and maybe some .32. I have a set of .32 dies.
I know I can make ammo as good as or better than factory, whatever caliber it is.
I can load for about half the cost of new, sometimes a lot less.
The .223/5.56 is way less cost than factory. $12 for boolitts, $25 for brass, <$4 for primer, and maybe $5 worth of powder. Call it $48 per 100, and the next hundred is just $23. If you collect fired brass, it is cheap from the get-go.
I began reloading when we wondered if $5 was a lot of money for a box of .357. Like 1972. I like to reload as much as I like shooting.