This topic contains 2 replies, has 1 voice, and was last updated by  bullet maker 3 years, 6 months ago.

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  • #27870
     Sgt. Mike 
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    This was copied from Corbin;s website (http://www.corbins.com/corewts.htm) for the ease of member’s here.
    Hopefully this helps

    To solve for Core diameter, weight, and length
    Formula: Length = volume/area

    To solve for Area : Area = Pi * (diameter * diameter)/4
    To Solve for Volume: Volume = Weight/density

    Lead density = .4097 lb/cu-in
    Weight (lbs) = Grains/7000

    Here is some tables as a guide:
    Core Lengths per diameter and weight Assuming pure lead, .4097 lb/cu-in.

    Core Dia Weight (gr)Length (in)
    0.1001.00.0444
    0.1005.00.222
    0.10010.00.4439
    0.10015.00.6658
    0.10020.00.8878
    0.10025.01.1098
    0.10030.01.3317
    0.10035.01.5537
    0.10040.01.7756
    0.10045.01.9976
    0.1251.00.0284
    0.1255.00.1420
    0.12510.00.2841
    0.12515.00.4261
    0.12520.00.5682
    0.12525.00.7102
    0.12530.00.8523
    0.12535.00.9943
    0.12540.01.1364
    0.12545.01.2784
    0.12550.01.4205
    0.12555.01.5625
    0.12560.01.7046
    0.12565.01.8466
    0.12570.01.9887
    0.1701.00.0154
    0.17010.00.1536
    0.17015.00.2304
    0.17020.00.3072
    0.17025.00.3840
    0.17030.00.4608
    0.17040.00.6144
    0.17050.00.7680
    0.17060.00.9216
    0.17070.01.0752
    0.17080.01.2288
    0.17090.01.3824
    0.170100.01.5360
    0.170110.01.6896
    0.170120.01.8432
    0.170130.01.9968
    0.1851.00.0130
    0.18510.00.1297
    0.18520.00.2594
    0.18530.00.3891
    0.18540.00.5188
    0.18550.00.6485
    0.18560.00.7782
    0.18570.00.9079
    0.18580.01.0376
    0.18590.01.1673
    0.185100.01.2970
    0.185110.01.4267
    0.185120.01.5564
    0.185130.01.6861
    0.2181.00.0093
    0.21810.00.0934
    0.21820.00.1868
    0.21830.00.2802
    0.21840.00.3736
    0.21850.00.467
    0.21860.00.5604
    0.21870.00.6538
    0.21880.00.7472
    0.21890.00.8406
    0.218100.00.9341
    0.218110.01.0275
    0.218120.01.1209
    0.218130.01.2143
    0.218140.01.3077
    0.218150.01.4011
    0.218160.01.4945
    0.218170.01.5879
    0.218180.01.6813
    0.218190.01.7747
    0.218200.01.8681
    0.218210.01.9615
    0.2471.00.0073
    0.24710.00.0728
    0.24720.00.1455
    0.24730.00.2183
    0.24740.00.2910
    0.24750.00.3638
    0.24760.00.4366
    0.24770.00.5093
    0.24780.00.5821
    0.24790.00.6548
    0.247100.00.7276
    0.247120.00.8731
    0.247140.01.0186
    0.247160.01.1642
    0.247180.01.3097
    0.247200.01.4552
    0.247240.01.7462
    0.247260.01.8918
    0.2751.00.0059
    0.2755.00.0293
    0.27510.00.0587
    0.27525.00.1467
    0.27550.00.2935
    0.27575.00.4402
    0.275100.00.5870
    0.275125.00.7337
    0.275150.00.8805
    0.275175.01.0272
    0.275200.01.1740
    0.275225.01.3207
    0.275250.01.4674
    0.275275.01.6142
    0.275300.01.7609
    0.275325.01.9077
    0.275350.02.0544
    0.3121.00.0046
    0.3125.00.0228
    0.31210.00.0456
    0.31225.00.1140
    0.31250.00.2280
    0.31275.00.3420
    0.312100.00.4560
    0.312125.00.5700
    0.312150.00.6840
    0.312175.00.7980
    0.312200.00.9120
    0.312225.01.0260
    0.312250.01.1400
    0.312275.01.2540
    0.312300.01.3680
    0.312325.01.4820
    0.312350.01.5960
    0.312375.01.7100
    0.312400.01.8240
    0.312425.01.9380
    0.312450.02.0521
    0.3401.00.0038
    0.3405.00.0192
    0.34010.00.0384
    0.34025.00.0960
    0.34050.00.1920
    0.34075.00.2880
    0.340100.00.3840
    0.340125.00.4800
    0.340150.00.5760
    0.340175.00.6720
    0.340200.00.7680
    0.340225.00.8640
    0.340250.00.9600
    0.340275.01.0560
    0.340300.01.1520
    0.340325.01.2480
    0.340350.01.3440
    0.340375.01.4400
    0.340400.01.5360
    0.340425.01.6320
    0.340450.01.7280
    0.340475.01.8240
    0.340500.01.9200
    0.340525.02.0160
    0.36510.0033
    0.36550.0167
    0.365100.0333
    0.365250.0833
    0.365500.1666
    0.3651000.3332
    0.3651500.4998
    0.3652000.6664
    0.3652500.833
    0.3653000.9996
    0.3653501.1662
    0.3654001.3328
    0.3654501.4994
    0.3655001.666
    0.3655501.8326
    0.3656001.9992
    0.3656502.1658
    0.3901.00.0029
    0.3905.00.0146
    0.39010.00.0292
    0.39025.00.073
    0.39050.00.1459
    0.390100.00.2918
    0.390150.00.4378
    0.390200.00.5837
    0.390250.00.7296
    0.390300.00.8755
    0.390350.01.0215
    0.390400.01.1674
    0.390450.01.3133
    0.390500.01.4592
    0.390550.01.6052
    0.390600.01.7511
    0.390650.01.897
    0.390700.02.0429
    0.4301.00.0024
    0.4305.00.0120
    0.43010.00.0240
    0.43025.00.0600
    0.430100.00.2401
    0.430150.00.3601
    0.430200.00.4802
    0.430250.00.6002
    0.430300.00.7202
    0.430350.00.8403
    0.430400.00.9603
    0.430450.01.0803
    0.430500.01.2004
    0.430550.01.3204
    0.430600.01.4405
    0.430650.01.5605
    0.430700.01.6805
    0.430750.01.8006
    0.430800.01.9206
    0.430850.02.0406
  • #27872
     Sgt. Mike 
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    Hmm did not post exactly in tables as I had wished I’ll edit the tables for a cleaner print out so bear with me, once completed I’ll delete this second post leaving the first

  • #27876
     bullet maker 
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    I have that table up on the wall for reference.

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