tin to lead ratio question
I have been surfing the forum and checking various, what seem to be, reputable sources for an answer.
Where to begin.
I will be suing a 10lb Lee perfect production pot with spout to cast 30/30 bullets into a Lee 150gr FN GC mold.
I have Ingots I have been melted down from fluxed clip on wheel weights.
I have some 50/50 bar solder. (could I use lead free wire solder?)
I have seen suggested 1lb of tin solder for every 9lbs of lead (wheel weights).
I have seen 1/4 oz for every lb of lead.
I have seen ratios inbetween
I know a hardness test is really going to give me the answer I am looking for.
Is there a place for a good answer (reference manual etc)
I do not want to melt 10lbs - cast and quench - only to find out the batch is too soft, to hard, flows pooly due to mix.
I do realize it is trial and error. I do understand there really is no EXACT formula.
I guess what I am looking for is a reasoble start point that is not wasteful (time, resources, lead, tin).
So what would be the correct start point for 10lbs batch ratio?
Thanks