I know there are a number of you guys that cast bullets and some that do it as a profesion. My goal is for 45/70 cast bullets with a Brinnel hardness of 18. My question is this: how to mix an alloy that will reach this hardness without heat treatment? Here is what I have tried so far..... I have a bunch of melted down wheel weights that I melted myself a few years ago, all came from local tire shops in Anchorge. Air cooled, and aged a month or more, they come in at 13 to 14 bn on my lee hardness tester? everything I have ever read about wheel weights says they should be much softer. I am confident in my readings from the lee hardness tester, and have a known hardness bullet from bufflo bore and from Garret that both read 20 bn. I have tried dropping my bullets from the mould into cold water to "quench" them, but with the WW alloy they come out hard like rocks (29 to 31 bn). So I tried adding some (what I thought was soft lead) hornady black powder round balls .45 cal in with my WW alloy with 1 lb of round balls to every 5 lbs of WW and then 2% tin (from midway usa) and then water quenced these.......yep, didnt do much still read about 29 bn on my hardness tester? Air cooled they were still about 13 bn. So then, in desperation I ordered some "linotype" from a guy on e-bay yes, I know that I am an idiot, and no, I am not suprized that what I got was probably not linotype. It measures 16 bn and is in fact harder than my WW alloy, but not as hard as I expected from Linotype (19 to 20 Bn) but I have not added any tin to it yet to see what it test at with 2 to 4 % tin? I have also order 10lbs of certified linotype from midway usa to use as my "control" so to speek, and compair with other alloys, but it has yet to arrive (along with my mould for my new 375 winchester). So, I guess what I am asking, is should I try to soften up my alloy with pure lead and then water quench to the desired hardness, or harden up my alloy with Linotype and air cool to the desired hardness, or should I just bag the whole thing and buy some nice jacketed bullets and quit pulling my hair out? I have also read from many sources that hard alloy (18 + bn) is unsuitable for game as it tends to "shatter", but I have personaly fired several of those ultra hard quenched bullets into wet sand at 1800 fps and they did NOT shatter and retained 85% weight? what is your opinions on that?