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Jeff Maney
08-19-2014, 05:28 PM
I re-checked five boolit lots (diameters were first checked the day cast) I had cast since last November. All lots had increased 0.0007"/0.0009" except for the 311299? Maybe the longer time since casting or the lower Sb % is responsible? I have read this for years, wait to size, etc. Might be interesting to see any changes with more time?

Jeff


Mold
Date
Band Diameter
Band Diameter
Diameter
Sn %
Sb %
BHN


ID
Cast
Cast/"
Aged/"
Change/"





Lyman 311299
5-Nov-13
0.3106
0.3107
0.0001
2.50
2.39
11.5


C312-155-2R
31-Mar-14
0.3115
0.3122
0.0007
1.82
4.82
13.6


C312-155-2R
11-Apr-14
0.3116
0.3125
0.0009
1.79
4.78
13.5


C312-155-2R
13-Apr-14
0.3116
0.3125
0.0009
1.94
4.98
13.7


HM2-311-160-5
14-May-14
0.3127
0.3136
0.0009
2.00
5.07
13.8