UPDATES AT THE BOTTOM
Cast up a few boolits today.
Alloy was 50/50 Clip on/Pure with 3% tin added for fillout. These were water dropped after casting then powder coated at 400 degrees then put into the bucket of water again.
My alloy gets about 10-12 air dropping before powder coating. After powder coating I checked it on my Lee tester and it gave 14 bhn. Who knows what it will rise up to within a couple weeks.
I will be doing more experiments using air cooling after casting then water dropped after powder coating. Second test will be water dropped after casting then air cooled after powder coating.
I will keep all you guys updated with my results over the next couple weeks.
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Hardness was done with my Lee tester under a 4x mag and Starret dial calipers, these may not seem right all the time, but it's what I got.
Alloy #1 50% Clip on WW / 50% soft (xray, pipe, stick on) 3% tin added ----- 95.1%Pb/1.4%Sb/3.2%Sn/.05%As
Alloy #4 1:2 Alloy #1 / Clip on WW ----- 95.7%Pb/2.4%Sb/1.5%Sn/.4%As
..............................12/31 ---------1/9
Alloy #1
As cast, air cooled - 9 bhn-----13.0 bhn
WD after casting/ WD after PC'ing - 11.2 bhn-----12.1 bhn
WD after casting/ AC after PC'ing - 10.4 bhn-----12.1 bhn
Alloy #4
As cast, air cooled - 10 bhn-----13.4 bhn
As cast, water dropped - 11.4 bhn-----24 bhn
WD after casting/ WD after PC'ing - 11.0 bhn-----12.5 bhn
WD after casting/ AC after PC'ing - 11.0 bhn-----13.4 bhn
AC after casting/ AC after PC'ing - 10.7 bhn-----13.4 bhn
AC after casting/ WD after PC'ing - 12.5 bhn-----13 bhn