It usually takes me about two or three years to dig enough scrap brass, copper, and lead to make a trip up the road worthwhile.
... ,and the scrap yard I went to wouldn't take aluminum cans because of Covid concerns yet the local guy on the corner can take your cans and then sell them to the same scrap yard that wouldn't take them in the first place.Makes no damn sense.
I use a file to determine copper or brass. I had the wire in a separate bucket from other copper like pipe, flashing and other misc but threw the wires in with the other when I went.You got a good return on the copper, you might have taken a hit on the brass though.
Down grade to tap brass when it was a minimum a yellow.
I would of given a yellow brass price and did the sort.
The slides are yellow 70/30 same as shell casings/zippers/pocket watch brass.
Threaded brass pipe/old threaded taps are red brass.
A small grinder is the best way for a person to ID the brass if unsure.
Easiest way of making money is an upgrade.
Lead is leadaunless it's tested there's little difference