Help please with 300 PRC Hornady 212gr ELDX N565 powder

6mm Remington

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Could anyone help me with published data or QuickLoad using this combination. It sure would be appreciated!!

David

300 PRC - Hornady 212gr ELDX - N565 powder (Vihtavuori powder)

Sorry guys my fault.
 
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mtmuley

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If Vihtavuori or Hornady don't publish it probably isn't available. Look on LRH for info. mtmuley
 

elkantlers

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I bet it was N560 or N570. Both are slow powders good for magnum loads.

Their site doesn't have any load data for 300 PRC.
 

mtmuley

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Six pounds of powder for a rifle yet to be loaded for is pretty optimistic. Like I said look to the long range forums for info. mtmuley
 

Caseknife

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Here is some data from QL. Lots can change from different variables, but somewhere to start.
Cartridge : .300 Precision Rifle Cartridge
Bullet : .308, 212, Hornady ELD-X 3077
Useable Case Capaci: 90.912 grain H2O = 5.903 cm³
Cartridge O.A.L. L6: 3.700 inch = 93.98 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Vihtavuori N565 *C

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 76 65.60 2305 2501 29751 10347 92.3 1.844
-18.0 78 67.24 2363 2629 31741 10669 93.5 1.798
-16.0 80 68.88 2422 2761 33859 10978 94.6 1.753
-14.0 82 70.52 2480 2895 36112 11274 95.6 1.709
-12.0 84 72.16 2538 3033 38508 11554 96.5 1.662
-10.0 86 73.80 2596 3173 41056 11818 97.3 1.610
-08.0 88 75.44 2654 3316 43766 12064 98.0 1.561
-06.0 90 77.08 2712 3462 46649 12291 98.6 1.514
-04.0 91 78.72 2769 3610 49716 12498 99.1 1.468
-02.0 93 80.36 2827 3761 52980 12684 99.5 1.425
+00.0 95 82.00 2883 3913 56455 12846 99.8 1.383 ! Near Maximum !
+02.0 97 83.64 2940 4067 60157 12986 99.9 1.342 ! Near Maximum !
+04.0 99 85.28 2995 4223 64103 13102 100.0 1.303 ! Near Maximum !
+06.0 101 86.92 3051 4381 68312 13203 100.0 1.266 !DANGEROUS LOAD-DO NOT USE!
+08.0 103 88.56 3106 4540 72806 13300 100.0 1.229 !DANGEROUS LOAD-DO NOT USE!
+10.0 105 90.20 3160 4700 77608 13394 100.0 1.194 !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 95 82.00 3011 4267 68217 12357 100.0 1.272 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 95 82.00 2698 3428 44964 12766 95.5 1.531
 

Caseknife

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Data is kind of scrunched.
at the +00.0 95%fill, 82.0 grains, 2883 fps, 3913 lbft energy at 56455 psi
So that said, I would start in the 79-80 gr range and work up from there. Never worked with N565,
but that method has worked for me on other loads with unpublished data with the one exception of
working up a load for 6.5PRC and RL26!
 

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