165gr Ballistic Tip min/max load

francois21

Beginner
Jun 7, 2019
1
0
What would the recommended minimum and maximum load be for 30-06 springfield with Vihtavuori N550 and Nosler 165gr Ballistic tip? I am not familiar with Vihtavuori but want to test it out.


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Welcome aboard, Francois. Vihtavuori powders are excellent. VN550 may not be the best choice for your 30-06, but it will certainly work for you. Here is a QL projection of powder for you to explore.

Code:
Cartridge          : .30-06 Spring.  (SAAMI)
Bullet             : .308, 165, Nosler BalTip 30165
Useable Case Capaci: 60.137 grain H2O = 3.905 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length      : 22.0 inch = 558.8 mm
Powder             : Vihtavuori N550

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   91    51.75   2574    2427   42038   9720     95.7    1.256
-09.0   92    52.33   2603    2482   43444   9831     96.1    1.236
-08.0   93    52.90   2632    2537   44898   9939     96.5    1.218
-07.0   94    53.48   2660    2593   46400  10043     96.9    1.199
-06.0   95    54.05   2689    2649   47955  10144     97.3    1.181
-05.0   96    54.63   2718    2706   49562  10241     97.6    1.163
-04.0   97    55.20   2746    2764   51224  10334     98.0    1.146  ! Near Maximum !
-03.0   98    55.78   2775    2822   52944  10423     98.3    1.129  ! Near Maximum !
-02.0   99    56.35   2804    2880   54723  10509     98.5    1.112  ! Near Maximum !
-01.0  100    56.93   2832    2939   56564  10590     98.8    1.096  ! Near Maximum !
+00.0  102    57.50   2861    2998   58470  10667     99.0    1.079  ! Near Maximum !
+01.0  103    58.08   2889    3058   60443  10740     99.2    1.063  !DANGEROUS LOAD-DO NOT USE!
+02.0  104    58.65   2917    3119   62486  10808     99.4    1.048  !DANGEROUS LOAD-DO NOT USE!
+03.0  105    59.23   2946    3179   64603  10871     99.6    1.032  !DANGEROUS LOAD-DO NOT USE!
+04.0  106    59.80   2974    3241   66796  10930     99.7    1.017  !DANGEROUS LOAD-DO NOT USE!
+05.0  107    60.38   3002    3302   69069  10984     99.8    1.003  !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    102    57.50   2989    3274   70350  10352    100.0    0.999  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    102    57.50   2682    2636   46945  10435     93.7    1.186

Hope this helps.
 
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