i just got 2 shower pans, they are pure lead. they weigh about 150lbs each. i have large bars of lead that came out of race cars, who knows what they came from. i have a hill of dirt i have been shooting in for 30 years i dig lead out of. most is a mix of soft RB and cast rifle and pistol cast from WW, i tell you the truth, i see little to no difference, they all shoot and shoot good. i really think to much is made over how soft it is,,,,,,,,,,,,,,,