Originally Posted by Azar
Here's the 6.5 Creedmoor. Again, with how close to the lands you are I increased the shot start initiation pressure to be "touching the lands" (i.e. add 7,200 PSI). Looks like 41.5g is recommended max for 2,787 FPS. This is still about 2g higher than what's recommended by Hodgdon.

USE THIS DATA AT YOUR OWN RISK.

Code
Cartridge          : 6.5 Creedmoor Hornady
Bullet             : .264, 130, Nosler AccuBond 56902
Useable Case Capaci: 46.579 grain H2O = 3.024 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 24.0 inch = 609.6 mm
Powder             : Hodgdon H4350

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.22% 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

-12.2   86    36.00   2457    1743   44011   7956     94.1    1.312
-11.0   87    36.50   2487    1786   45342   8071     94.6    1.296
-09.8   88    37.00   2517    1829   46713   8185     95.0    1.280
-08.5   89    37.50   2547    1873   48127   8296     95.4    1.265
-07.3   90    38.00   2577    1918   49585   8404     95.9    1.249
-06.1   92    38.50   2607    1962   51089   8511     96.2    1.234
-04.9   93    39.00   2637    2008   52640   8614     96.6    1.219
-03.7   94    39.50   2667    2054   54241   8715     97.0    1.205  ! Near Maximum !
-02.4   95    40.00   2697    2100   55897   8813     97.3    1.190  ! Near Maximum !
-01.2   96    40.50   2727    2147   57616   8908     97.6    1.176  ! Near Maximum !
+00.0   98    41.00   2757    2194   59399   9000     97.9    1.161  ! Near Maximum !
+01.2   99    41.50   2787    2242   61250   9089     98.2    1.147  ! Near Maximum !
+02.4  100    42.00   2817    2290   63172   9174     98.5    1.134  !DANGEROUS LOAD-DO NOT USE!
+03.7  101    42.50   2846    2339   65167   9256     98.7    1.120  !DANGEROUS LOAD-DO NOT USE!
+04.9  102    43.00   2876    2388   67238   9334     99.0    1.107  !DANGEROUS LOAD-DO NOT USE!
+06.1  104    43.50   2906    2437   69389   9408     99.2    1.093  !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     98    41.00   2818    2292   63605   8985     99.4    1.132  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba     98    41.00   2688    2085   55210   8919     95.7    1.194  ! Near Maximum !



Thank you very much!