I'm going to be really lazy here. I have an alloy in one of several books but instead of looking it up I'm going to ask.
I have acquired 88 lbs. of linotype from my oldest son. I seem to remember one mixed it 50/50 with straight lead but don't recall the BHN # or if that is the correct percentages. Any help appreciated.
I have data to simplify the measrement of bullet alloys. This was developed by the NRA and quoted by Harrison. The comparison was calculated from impressions in pure lead (BHN 5) and an unknown alloy,made with a steel ball. The method is simple and accurate. Too bad such info has become lost or been forgotten.
I missed your post. The LASC site has some of the data you want if you scroll down far enough, here. There is also a short list in the Lyman reloading manual.
Johnjay,
The whole Brinell hardness scale is based on the diameter of the impressions of a steel ball that results from putting a known load on it. You can substitute the Lee hardness tester's indentations, dividing the diameter of its indentation in pure lead by the diameter of the indentation you get in your sample. Get the sample BHN by looking up the ration on the right, below:
Yeah, no way to get there. I just left it there to illustrate the step sizes. It makes you realize an exact measurement is pretty tough to arrive at.
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