Got about 50# of lead ingots. Some from a lee mold others from a muffin tin. All ~ 1# each. These are rescues from a local metal salvager. No idea of the alloy of these ingots. When struck with the blunt side of a butter knife, some go “thud” and some do “dink”. Those are scientific terms, in case you were wondering. Anyway, I had planned to cast this into .454 round balls but am worried that the harder alloyed lead, aka the ones that went “dink” will be too hard for my repro NMA. Thoughts.