7mm SAUM Quickload request

filmjunkie4ever

Handloader
May 4, 2011
1,466
101
My friend is having a custom 7mm SAUM put together. Its going to be built on a Remington 700 with a Benchmark 24” barrel.

He’s wanting to shoot 180 grain Berger VLD Hunters and N568 powder with Large Rifle Magnum primers.

Thanks in advance.
 

DrMike

Ballistician
Nov 8, 2006
35,456
2,218
Code:
Cartridge          : 7 mm Rem SA Ultra Mag
Bullet             : .284, 180, Berger Hunt VLD G7 #28502
Useable Case Capaci: 62.034 grain H2O = 4.028 cm³
Cartridge O.A.L. L6: 2.820 inch = 71.63 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Vihtavuori N568 *C*T

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  100    59.94   2589    2679   43483  11772     94.3    1.457
-09.0  102    60.61   2623    2750   45161  11919     94.9    1.431
-08.0  103    61.27   2657    2821   46914  12061     95.4    1.405
-07.0  104    61.94   2691    2894   48745  12196     96.0    1.380
-06.0  105    62.60   2725    2967   50660  12326     96.5    1.356
-05.0  106    63.27   2759    3042   52663  12448     97.0    1.332
-04.0  107    63.94   2793    3118   54758  12565     97.4    1.308
-03.0  108    64.60   2827    3195   56952  12674     97.8    1.285  ! Near Maximum !
-02.0  109    65.27   2862    3273   59249  12776     98.2    1.262  ! Near Maximum !
-01.0  110    65.93   2896    3352   61658  12870     98.5    1.239  ! Near Maximum !
+00.0  112    66.60   2930    3431   64184  12956     98.8    1.217  ! Near Maximum !
+01.0  113    67.27   2964    3512   66833  13035     99.1    1.195  !DANGEROUS LOAD-DO NOT USE!
+02.0  114    67.93   2999    3594   69618  13105     99.3    1.174  !DANGEROUS LOAD-DO NOT USE!
+03.0  115    68.60   3033    3677   72543  13167     99.5    1.153  !DANGEROUS LOAD-DO NOT USE!
+04.0  116    69.26   3067    3760   75620  13219     99.7    1.132  !DANGEROUS LOAD-DO NOT USE!
+05.0  117    69.93   3101    3845   78852  13263     99.8    1.112  !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    112    66.60   3088    3810   80777  12465    100.0    1.112  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    112    66.60   2708    2930   50092  12581     92.1    1.355
 
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