Quickload request 7mm-08

[cerralvo78]

I have a Howa 1500 Ultralight Youth 7mm 08

Have shot 200 factory rounds
loaded some rounds for my ladder test 42 to 47 with varget at .5 increments

From the ladder test I found a few posible accuracy nodes. Using Sierra Pro hunter 120 gn with Varget powder
1st between 42.0 and 42.5 around 2650 fps
2nd between 45.0 and 45.5 around 2887 fps

No pressure signs up to 47.0 grains


Can Someone run a quickload for me??
Just like to verify my data
I use the OBT on a 7 RemMag and got me real close to a node

20 inch" barrel
Sierra Pro hunter 120 gn Bullet
Nosler brass trim to 2.025"
COAL 2.785
Case capacity 55.4 gn of water
Powder Varget
Primers Lellier & Bellot larger Primers

Please run From 42 grains to 47 grains


Thanks




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[DrMike]

Cartridge          : 7 mm-08 Rem.
Bullet             : .284, 120, Sierra SP 1900
Useable Case Capaci: 53.155 grain H2O = 3.451 cm³
Cartridge O.A.L. L6: 2.785 inch = 70.74 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : Hodgdon VARGET

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   89    42.30   2659    1884   42138  10018     93.9    1.106
-09.0   90    42.77   2688    1925   43427  10142     94.4    1.090
-08.0   91    43.24   2716    1966   44754  10264     94.8    1.075
-07.0   92    43.71   2744    2007   46121  10384     95.2    1.059
-06.0   93    44.18   2773    2049   47529  10501     95.6    1.045
-05.0   94    44.65   2801    2091   48980  10615     96.0    1.030
-04.0   95    45.12   2829    2133   50475  10727     96.4    1.016
-03.0   96    45.59   2858    2176   52016  10836     96.8    1.002  ! Near Maximum !
-02.0   97    46.06   2886    2219   53603  10941     97.1    0.988  ! Near Maximum !
-01.0   98    46.53   2914    2263   55239  11044     97.4    0.974  ! Near Maximum !
+00.0   99    47.00   2943    2307   56926  11144     97.7    0.961  ! Near Maximum !
+01.0  100    47.47   2971    2352   58665  11240     98.0    0.948  ! Near Maximum !
+02.0  101    47.94   2999    2396   60458  11333     98.3    0.935  !DANGEROUS LOAD-DO NOT USE!
+03.0  102    48.41   3027    2442   62308  11423     98.5    0.922  !DANGEROUS LOAD-DO NOT USE!
+04.0  103    48.88   3055    2487   64216  11509     98.7    0.910  !DANGEROUS LOAD-DO NOT USE!
+05.0  104    49.35   3083    2533   66185  11591     99.0    0.898  !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    47.00   3071    2513   66560  11066    100.0    0.897  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba     99    47.00   2774    2050   47481  10736     91.9    1.044

 

[cerralvo78]

Thanks a lot DrMike


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