>>>> I picked up a 2nd batch of 1/2 gallon jars <<<<
Just remember, canning in half gallon jars is no longer recommended and they do not even list canning times for them.
They are fine for storing dry items - (OK, I will admit that I have a few ½ gallons of pickled beets and hard boiled eggs - I know, but I have a craving sometimes for them and we have so many eggs)..... :0)
I miss the 1½ pint jars - but they don’t make them anymore - in fact, I was told that they never made them, so I brought one made by Ball into the store and showed them - they called the factory and were told that they were discontinued years ago. That was a handy size for me.