I have access to a 5 gallon bucket full of indoor range scrap and want to put it to good use. Looks like the lead is gonna be soft as much of it contains jacket material (and 22 bullets). I also shoot a lot of trap, so I always have a good supply of 71/2 magnum shot on hand. Would adding some shot serve to harden the lead to an acceptable level (wheelweights) and also make it capable of hardening through heat treating? Thanks in advance for any and all assistance.