QL Data - 6.5 PRC Dr. Mike, please

Ralt71

Ralt71

Beginner
Jun 6, 2025
189
202
With some of the trials I have done (at the recommendation from this forum and JD) seating deeper into the case, I am going back to the drawing board on my 6.5 PRC. I'm going to start at .050 (ogive) off the lands. Since I'm doing this, I was going to test some of the other powders I typically like since I'm not sure the H1000 is giving me all the setup has to offer.

Here is what I have;
6.5 PRC
AccuBond 140gr
WLRM Primers
20" Barrel

Would like to double check H1000
Also check
H4350
IMR4350
N165
 
Code: 
Cartridge          : 6.5 PRC
Bullet             : .264, 140, Nosler AccuBond 57873
Useable Case Capaci: 59.938 grain H2O = 3.892 cm³
Cartridge O.A.L. L6: 2.955 inch = 75.06 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : Hodgdon H1000 *T

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   99    54.00   2560    2037   44085  14253     94.0    1.255
-09.0  100    54.60   2594    2091   45716  14447     94.6    1.233
-08.0  101    55.20   2627    2146   47413  14634     95.2    1.211
-07.0  102    55.80   2662    2202   49181  14813     95.8    1.190
-06.0  103    56.40   2696    2259   51027  14986     96.4    1.169
-05.0  104    57.00   2730    2317   52949  15149     96.9    1.148
-04.0  105    57.60   2764    2375   54957  15305     97.3    1.128
-03.0  106    58.20   2799    2435   57051  15452     97.8    1.108  ! Near Maximum !
-02.0  108    58.80   2833    2495   59240  15590     98.2    1.088  ! Near Maximum !
-01.0  109    59.40   2868    2556   61524  15718     98.5    1.069  ! Near Maximum !
+00.0  110    60.00   2902    2618   63916  15837     98.8    1.050  ! Near Maximum !
+01.0  111    60.60   2937    2681   66416  15945     99.1    1.032  !DANGEROUS LOAD-DO NOT USE!
+02.0  112    61.20   2971    2744   69033  16042     99.4    1.013  !DANGEROUS LOAD-DO NOT USE!
+03.0  113    61.80   3006    2809   71773  16129     99.6    0.995  !DANGEROUS LOAD-DO NOT USE!
+04.0  114    62.40   3041    2874   74645  16204     99.7    0.977  !DANGEROUS LOAD-DO NOT USE!
+05.0  115    63.00   3075    2940   77659  16267     99.9    0.960  !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    110    60.00   2986    2773   70831  15674     99.9    1.004  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    110    60.00   2802    2441   57505  15706     96.2    1.102  ! Near Maximum !
 
Code: 
Cartridge          : 6.5 PRC
Bullet             : .264, 140, Nosler AccuBond 57873
Useable Case Capaci: 59.938 grain H2O = 3.892 cm³
Cartridge O.A.L. L6: 2.955 inch = 75.06 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : Hodgdon H4350 *T

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    46.35   2538    2002   47124  12872     97.4    1.234
-09.0   87    46.87   2564    2044   48526  13011     97.7    1.217
-08.0   88    47.38   2590    2086   49967  13145     98.0    1.200
-07.0   89    47.90   2616    2128   51447  13275     98.3    1.183
-06.0   90    48.41   2642    2170   52969  13402     98.6    1.167
-05.0   91    48.93   2668    2213   54533  13524     98.8    1.151
-04.0   91    49.44   2694    2256   56140  13641     99.0    1.135  ! Near Maximum !
-03.0   92    49.96   2720    2300   57792  13754     99.2    1.119  ! Near Maximum !
-02.0   93    50.47   2746    2344   59490  13863     99.4    1.104  ! Near Maximum !
-01.0   94    50.99   2771    2388   61236  13967     99.5    1.089  ! Near Maximum !
+00.0   95    51.50   2797    2432   63032  14066     99.7    1.074  ! Near Maximum !
+01.0   96    52.02   2822    2476   64878  14160     99.8    1.060  !DANGEROUS LOAD-DO NOT USE!
+02.0   97    52.53   2848    2521   66777  14250     99.9    1.046  !DANGEROUS LOAD-DO NOT USE!
+03.0   98    53.05   2873    2566   68730  14334     99.9    1.032  !DANGEROUS LOAD-DO NOT USE!
+04.0   99    53.56   2898    2611   70739  14413    100.0    1.018  !DANGEROUS LOAD-DO NOT USE!
+05.0  100    54.08   2923    2657   72806  14486    100.0    1.005  !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    51.50   2853    2530   68098  13878    100.0    1.037  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba     95    51.50   2731    2318   57962  14092     98.3    1.117  ! Near Maximum !
 
Code: 
Cartridge          : 6.5 PRC
Bullet             : .264, 140, Nosler AccuBond 57873
Useable Case Capaci: 59.938 grain H2O = 3.892 cm³
Cartridge O.A.L. L6: 2.955 inch = 75.06 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : IMR 4350

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   84    46.35   2543    2011   47423  12882     97.6    1.230
-09.0   85    46.87   2569    2052   48834  13018     97.9    1.213
-08.0   86    47.38   2595    2094   50283  13151     98.2    1.196
-07.0   87    47.90   2621    2136   51773  13280     98.5    1.180
-06.0   88    48.41   2647    2179   53304  13404     98.7    1.163
-05.0   89    48.93   2673    2222   54877  13524     98.9    1.147
-04.0   90    49.44   2699    2265   56494  13640     99.1    1.131  ! Near Maximum !
-03.0   91    49.96   2725    2308   58156  13751     99.3    1.116  ! Near Maximum !
-02.0   92    50.47   2751    2352   59865  13858     99.5    1.101  ! Near Maximum !
-01.0   93    50.99   2776    2396   61621  13960     99.6    1.086  ! Near Maximum !
+00.0   94    51.50   2802    2440   63427  14057     99.7    1.071  ! Near Maximum !
+01.0   95    52.02   2827    2484   65284  14149     99.8    1.057  !DANGEROUS LOAD-DO NOT USE!
+02.0   96    52.53   2852    2529   67194  14236     99.9    1.043  !DANGEROUS LOAD-DO NOT USE!
+03.0   97    53.05   2878    2574   69159  14318    100.0    1.029  !DANGEROUS LOAD-DO NOT USE!
+04.0   97    53.56   2903    2619   71180  14395    100.0    1.015  !DANGEROUS LOAD-DO NOT USE!
+05.0   98    54.08   2928    2665   73259  14466    100.0    1.002  !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     94    51.50   2857    2537   68511  13859    100.0    1.034  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba     94    51.50   2736    2327   58337  14096     98.5    1.113  ! Near Maximum !
 
Code: 
Cartridge          : 6.5 PRC
Bullet             : .264, 140, Nosler AccuBond 57873
Useable Case Capaci: 59.938 grain H2O = 3.892 cm³
Cartridge O.A.L. L6: 2.955 inch = 75.06 mm
Barrel Length      : 20.0 inch = 508.0 mm
Powder             : Vihtavuori N165 *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   93    50.85   2530    1989   45926  13116     96.7    1.258
-09.0   94    51.42   2559    2035   47477  13261     97.2    1.238
-08.0   95    51.98   2588    2082   49081  13402     97.5    1.218
-07.0   96    52.55   2617    2128   50739  13537     97.9    1.199
-06.0   97    53.11   2646    2176   52454  13667     98.2    1.180
-05.0   98    53.68   2674    2224   54229  13791     98.5    1.162
-04.0   99    54.24   2703    2272   56065  13910     98.8    1.143  ! Near Maximum !
-03.0  100    54.81   2732    2321   57965  14022     99.0    1.125  ! Near Maximum !
-02.0  101    55.37   2761    2370   59932  14128     99.2    1.108  ! Near Maximum !
-01.0  102    55.94   2790    2420   61968  14228     99.4    1.091  ! Near Maximum !
+00.0  103    56.50   2819    2470   64076  14322     99.6    1.074  ! Near Maximum !
+01.0  104    57.07   2847    2520   66261  14408     99.7    1.057  !DANGEROUS LOAD-DO NOT USE!
+02.0  105    57.63   2876    2571   68524  14488     99.8    1.041  !DANGEROUS LOAD-DO NOT USE!
+03.0  106    58.20   2904    2622   70870  14560     99.9    1.025  !DANGEROUS LOAD-DO NOT USE!
+04.0  108    58.76   2933    2674   73303  14626    100.0    1.009  !DANGEROUS LOAD-DO NOT USE!
+05.0  109    59.33   2961    2726   75826  14683    100.0    0.993  !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    103    56.50   2883    2585   70194  14100    100.0    1.031  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba    103    56.50   2741    2336   58007  14346     98.0    1.122  ! Near Maximum !
 
sako2 said:
If you haven't tried Ramshot Magmun give it a try.
Click to expand...
As stupid as this sounds, I have started staying away from ball powders because I can't stand the mess they make on my load bench and how much they seem to change POI with temperature.
 
You might also want to look at the Vihtavouri 500 series powders for a little extra punch over the 100 series powders.
MagPro is another powder that shows great potential in the 6.5 PRC with the 140 gr AccuBonds.
 
Ralt71 said:
As stupid as this sounds, I have started staying away from ball powders because I can't stand the mess they make on my load bench and how much they seem to change POI with temperature.
Click to expand...

Ralt71 said:
As stupid as this sounds, I have started staying away from ball powders because I can't stand the mess they make on my load bench and how much they seem to change POI with temperature.
Click to expand...
Yes they make a mess when using a autodispenser.
 
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