QL request

[sako2]

Would 1 of you fine gentlemen with QL run it with 6.5 staball. 6.5x55 swede using norma brass, fed 210 primer, hornady 129gn interlock, 6.5 staball powder, C.O.L of 3.075. In a interarms Mauser action. Thank you.

 

[DrMike]

Cartridge          : 6.5 x 55 Swedish
Bullet             : .264, 129, Hornady SP 2620
Useable Case Capaci: 53.139 grain H2O = 3.450 cm³
Cartridge O.A.L. L6: 3.075 inch = 78.11 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Winchester 6,5 StaBall *T*C

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    45.09   2504    1796   39452  10216     98.4    1.337
-09.0   86    45.59   2531    1835   40727  10317     98.7    1.316
-08.0   87    46.09   2558    1874   42044  10413     99.0    1.297
-07.0   88    46.59   2585    1914   43407  10505     99.2    1.277
-06.0   89    47.09   2612    1954   44814  10592     99.4    1.258
-05.0   90    47.60   2639    1995   46271  10674     99.6    1.240
-04.0   91    48.10   2666    2036   47777  10751     99.7    1.221  ! Near Maximum !
-03.0   92    48.60   2693    2077   49336  10823     99.8    1.203  ! Near Maximum !
-02.0   93    49.10   2719    2118   50949  10890     99.9    1.186  ! Near Maximum !
-01.0   94    49.60   2746    2160   52618  10952    100.0    1.169  ! Near Maximum !
+00.0   95    50.10   2773    2202   54347  11008    100.0    1.152  ! Near Maximum !
+01.0   96    50.60   2799    2244   56138  11060    100.0    1.135  !DANGEROUS LOAD-DO NOT USE!
+02.0   97    51.10   2825    2286   57993  11111    100.0    1.118  !DANGEROUS LOAD-DO NOT USE!
+03.0   98    51.60   2852    2329   59893  11160    100.0    1.102  !DANGEROUS LOAD-DO NOT USE!
+04.0   99    52.10   2878    2372   61909  11209    100.0    1.086  !DANGEROUS LOAD-DO NOT USE!
+05.0  100    52.61   2904    2415   63974  11257    100.0    1.071  !DANGEROUS LOAD-DO NOT USE!

Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba     95    50.10   2831    2295   59626  10803    100.0    1.108  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba     95    50.10   2701    2090   49363  11134     99.2    1.201  ! Near Maximum !

 

[sako2]

Thank you good DR.

 

[sako2]

That's qiute a bit above hodgdon. They max out at 45.5gn.