Can someone run a 308 win QL. please?

[jr1968]

308 win.
rem brass.
cci 200 primers.
H-322 powder.
Sierra 125 gr. spitzers.
22 in. barrel.

Thank You.
jr1968

 

[DrMike]

Cartridge          : .308 Win. (SAAMI)
Bullet             : .308, 125, Sierra SP 2120
Useable Case Capaci: 54.043 grain H2O = 3.509 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Hodgdon H322

Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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

-20.0   79    38.40   2578    1845   31933   7246     94.6    1.233
-18.0   81    39.36   2638    1931   34040   7440     95.5    1.202
-16.0   83    40.32   2697    2019   36283   7625     96.4    1.172
-14.0   85    41.28   2756    2108   38670   7800     97.2    1.140
-12.0   87    42.24   2815    2199   41206   7964     97.8    1.107
-10.0   89    43.20   2873    2291   43930   8116     98.4    1.076
-08.0   91    44.16   2931    2385   46819   8256     98.9    1.046
-06.0   93    45.12   2989    2479   49870   8384     99.3    1.017
-04.0   95    46.08   3046    2575   53108   8498     99.6    0.989  ! Near Maximum !
-02.0   97    47.04   3103    2672   56556   8598     99.8    0.962  ! Near Maximum !
+00.0   99    48.00   3159    2769   60231   8684    100.0    0.936  ! Near Maximum !
+02.0  101    48.96   3214    2868   64148   8755    100.0    0.911  !DANGEROUS LOAD-DO NOT USE!
+04.0  103    49.92   3269    2967   68329   8820    100.0    0.887  !DANGEROUS LOAD-DO NOT USE!
+06.0  105    50.88   3324    3067   72794   8882    100.0    0.864  !DANGEROUS LOAD-DO NOT USE!
+08.0  107    51.84   3378    3167   77567   8941    100.0    0.841  !DANGEROUS LOAD-DO NOT USE!
+10.0  109    52.80   3432    3269   82676   8997    100.0    0.820  !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     99    48.00   3268    2964   71390   8346    100.0    0.875  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     99    48.00   2997    2493   49274   8777     97.1    1.017

Consequently, Sierra lists 43.4 grains of H322 as the maximum charge the obtained under their laboratory conditions. I would be inclined to work up this load carefully to avoid any unpleasant surprises.

 

[jr1968]

Thank You DrMike.

jr1968.