Quickload request.

ShadeTree

Handloader
Mar 6, 2017
3,518
3,025
For a friend.

338 RUM 250gr Barnes TSX.

Powders are 7828 ssc and RL 22


Thank you.


P.S. Barnes shows a C.O.A.L of 3.575”, but they don't show pressures.
 
Code:
Cartridge          : .338 Rem Ultra Mag
Bullet             : .338, 250, Barnes 'TSX'30415
Useable Case Capaci: 94.462 grain H2O = 6.133 cm³
Cartridge O.A.L. L6: 3.575 inch = 90.81 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : IMR 7828 SSC

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-10.0   86    77.22   2539    3580   45387  11189     97.4    1.426
-09.0   87    78.08   2567    3658   46854  11301     97.7    1.408
-08.0   88    78.94   2595    3737   48372  11409     98.1    1.390
-07.0   89    79.79   2622    3816   49945  11512     98.4    1.372
-06.0   90    80.65   2649    3897   51568  11610     98.7    1.353
-05.0   91    81.51   2677    3978   53258  11703     98.9    1.333
-04.0   92    82.37   2704    4059   55003  11791     99.1    1.314  ! Near Maximum !
-03.0   93    83.23   2731    4142   56810  11873     99.3    1.294  ! Near Maximum !
-02.0   94    84.08   2759    4224   58684  11950     99.5    1.276  ! Near Maximum !
-01.0   95    84.94   2786    4308   60622  12021     99.7    1.257  ! Near Maximum !
+00.0   96    85.80   2813    4392   62636  12086     99.8    1.238  ! Near Maximum !
+01.0   97    86.66   2840    4477   64721  12145     99.9    1.220  !DANGEROUS LOAD-DO NOT USE!
+02.0   98    87.52   2867    4562   66886  12199    100.0    1.203  !DANGEROUS LOAD-DO NOT USE!
+03.0   99    88.37   2893    4647   69128  12245    100.0    1.185  !DANGEROUS LOAD-DO NOT USE!
+04.0  100    89.23   2920    4733   71447  12286    100.0    1.168  !DANGEROUS LOAD-DO NOT USE!
+05.0  101    90.09   2947    4820   73843  12324    100.0    1.151  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba     96    85.80   2928    4760   75393  11600    100.0    1.148  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     96    85.80   2645    3884   50870  12042     95.6    1.355

Code:
Cartridge          : .338 Rem Ultra Mag
Bullet             : .338, 250, Barnes 'TSX'30415
Useable Case Capaci: 94.462 grain H2O = 6.133 cm³
Cartridge O.A.L. L6: 3.575 inch = 90.81 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Alliant Reloder-22

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.0% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-10.0   88    77.04   2535    3567   46026  11112     98.5    1.441
-09.0   88    77.90   2561    3642   47470  11214     98.8    1.422
-08.0   89    78.75   2588    3717   48960  11311     99.0    1.404
-07.0   90    79.61   2614    3793   50497  11404     99.3    1.386
-06.0   91    80.46   2640    3870   52083  11491     99.4    1.367
-05.0   92    81.32   2667    3947   53720  11574     99.6    1.348
-04.0   93    82.18   2693    4025   55410  11652     99.7    1.329  ! Near Maximum !
-03.0   94    83.03   2719    4103   57153  11725     99.8    1.310  ! Near Maximum !
-02.0   95    83.89   2744    4181   58953  11792     99.9    1.291  ! Near Maximum !
-01.0   96    84.74   2770    4260   60811  11853    100.0    1.273  ! Near Maximum !
+00.0   97    85.60   2796    4339   62730  11910    100.0    1.255  ! Near Maximum !
+01.0   98    86.46   2821    4419   64711  11961    100.0    1.237  !DANGEROUS LOAD-DO NOT USE!
+02.0   99    87.31   2847    4499   66757  12011    100.0    1.220  !DANGEROUS LOAD-DO NOT USE!
+03.0  100    88.17   2872    4579   68871  12060    100.0    1.203  !DANGEROUS LOAD-DO NOT USE!
+04.0  101    89.02   2897    4660   71055  12108    100.0    1.186  !DANGEROUS LOAD-DO NOT USE!
+05.0  102    89.88   2922    4741   73312  12156    100.0    1.170  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 10% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 10% relative to nominal value:
+Ba     97    85.60   2901    4672   74763  11470    100.0    1.165  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     97    85.60   2640    3869   50848  12025     97.1    1.373
 
Thanks a bunch Dr Mike. I'm going today to help him check some things...…..I'll print this off and give it too him as a reference to go along with load development.
 
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