If your local range will let you....
you can take a simple square, wood frame, a piece of hardware cloth, and a shovel and go sieve your own.............
Copper jackets will float to the top, skim them off and sell them to the scrap yard............... you will end up with a mix of soft, hardcast, and who knows what, but it's usable, and can be adjusted.............
It doesn't take long to fill a 5 gal bucket doing this............. if you do... don't go by yourself!!!
