Hi Guys, 1st question, does anybody know the hardness of dental x ray lead sheets? Is it as hard as WW? Should it be combined with other metals? I shoot low speed & pressue 9s, 38s & 45acp. This is all new to me so please be patient with all the questions I'm bound to come up with. This is a great sight, what a learning tool! Thanks NRA PATRON LIFE MEMBER