QL request, .223 & 70 gr RDF, Varget

pharmseller · Dec 31, 2017

CCI400 primer, Remington cases, no idea the case volume. 22 7/16" barrel.

What does QL suggest for the max load?

Thanks,

P

DrMike · Jan 1, 2018

Code:

Cartridge          : .223 Rem. (SAAMI)
Bullet             : .224, 70, Nosler RDF HPBT 53066 G7
Useable Case Capaci: 24.992 grain H2O = 1.623 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length      : 2.4 inch = 61.9 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   96    21.51    766      91   38663  32644     33.2    0.349
-09.0   98    21.75    778      94   39950  33673     33.7    0.343
-08.0   99    21.99    790      97   41282  34736     34.3    0.336
-07.0  100    22.23    802     100   42663  35835     34.8    0.330
-06.0  101    22.47    815     103   44091  36972     35.4    0.324
-05.0  102    22.71    828     107   45571  38147     36.0    0.317
-04.0  103    22.94    841     110   47105  39364     36.5    0.312  ! Near Maximum !
-03.0  104    23.18    855     114   48694  40622     37.1    0.306  ! Near Maximum !
-02.0  105    23.42    869     117   50342  41925     37.8    0.300  ! Near Maximum !
-01.0  106    23.66    883     121   52048  43272     38.4    0.294  ! Near Maximum !
+00.0  107    23.90    898     125   53818  44668     39.1    0.289  ! Near Maximum !
+01.0  108    24.14    913     129   55653  46113     39.7    0.283  !DANGEROUS LOAD-DO NOT USE!
+02.0  109    24.38    928     134   57557  47609     40.4    0.278  !DANGEROUS LOAD-DO NOT USE!
+03.0  110    24.62    943     138   59531  49158     41.1    0.273  !DANGEROUS LOAD-DO NOT USE!
+04.0  112    24.86    959     143   61578  50763     41.9    0.267  !DANGEROUS LOAD-DO NOT USE!
+05.0  113    25.10    976     148   63702  52425     42.6    0.262  !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    107    23.90    972     147   63946  53073     46.4    0.263  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    107    23.90    822     105   44512  36944     32.3    0.319

jason miller · Jan 1, 2018

That's a pretty short barrel...

DrMike · Jan 1, 2018

jason miller":wiee6prc said:
That's a pretty short barrel...

Ya' think! :shock:

Wow! Must be too early for this computer; it ain't woke!

Good catch, Jason. :mrgreen:

Code:

Cartridge          : .223 Rem. (SAAMI)
Bullet             : .224, 70, Nosler RDF HPBT 53066 G7
Useable Case Capaci: 24.992 grain H2O = 1.623 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length      : 24.4 inch = 620.7 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   96    21.51   2625    1071   38967   6039     91.0    1.278
-09.0   98    21.75   2653    1094   40244   6115     91.6    1.259
-08.0   99    21.99   2682    1118   41565   6190     92.1    1.241
-07.0  100    22.23   2710    1142   42930   6263     92.6    1.224
-06.0  101    22.47   2739    1166   44347   6335     93.1    1.206
-05.0  102    22.71   2767    1190   45810   6405     93.6    1.189
-04.0  103    22.94   2796    1215   47329   6474     94.0    1.173  ! Near Maximum !
-03.0  104    23.18   2824    1240   48876   6540     94.5    1.156  ! Near Maximum !
-02.0  105    23.42   2853    1265   50529   6605     94.9    1.140  ! Near Maximum !
-01.0  106    23.66   2881    1290   52216   6668     95.3    1.124  ! Near Maximum !
+00.0  107    23.90   2910    1316   53964   6730     95.7    1.109  ! Near Maximum !
+01.0  108    24.14   2938    1342   55781   6789     96.1    1.094  !DANGEROUS LOAD-DO NOT USE!
+02.0  109    24.38   2967    1368   57663   6846     96.4    1.078  !DANGEROUS LOAD-DO NOT USE!
+03.0  110    24.62   2996    1395   59616   6901     96.8    1.064  !DANGEROUS LOAD-DO NOT USE!
+04.0  112    24.86   3024    1421   61647   6953     97.1    1.049  !DANGEROUS LOAD-DO NOT USE!
+05.0  113    25.10   3053    1448   63749   7004     97.4    1.035  !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    107    23.90   3050    1445   63979   6761     99.3    1.034  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    107    23.90   2732    1160   44574   6409     88.7    1.205

pharmseller · Jan 1, 2018

Thanks.

22.4" barrel.

Nosler doesn't post load data for this bullet yet.

P

DrMike · Jan 1, 2018

pharmseller":2ed1dpes said:

Thanks.

22.4" barrel.

Nosler doesn't post load data for this bullet yet.

Well, this computer has an attitude this morning. :? Can't seem to get anything right. :mrgreen:

Code:

Cartridge          : .223 Rem. (SAAMI)
Bullet             : .224, 70, Nosler RDF HPBT 53066 G7
Useable Case Capaci: 24.992 grain H2O = 1.623 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length      : 22.4 inch = 569.9 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   96    21.51   2575    1030   38967   6613     90.2    1.213
-09.0   98    21.75   2603    1053   40244   6700     90.7    1.196
-08.0   99    21.99   2631    1076   41565   6785     91.3    1.179
-07.0  100    22.23   2660    1100   42930   6869     91.8    1.162
-06.0  101    22.47   2688    1123   44347   6951     92.3    1.145
-05.0  102    22.71   2717    1147   45810   7031     92.8    1.129
-04.0  103    22.94   2745    1171   47329   7110     93.3    1.113  ! Near Maximum !
-03.0  104    23.18   2774    1196   48876   7186     93.8    1.097  ! Near Maximum !
-02.0  105    23.42   2802    1221   50529   7261     94.2    1.081  ! Near Maximum !
-01.0  106    23.66   2831    1246   52216   7334     94.7    1.066  ! Near Maximum !
+00.0  107    23.90   2859    1271   53964   7405     95.1    1.051  ! Near Maximum !
+01.0  108    24.14   2888    1296   55781   7474     95.5    1.036  !DANGEROUS LOAD-DO NOT USE!
+02.0  109    24.38   2916    1322   57663   7541     95.9    1.022  !DANGEROUS LOAD-DO NOT USE!
+03.0  110    24.62   2945    1348   59616   7605     96.2    1.008  !DANGEROUS LOAD-DO NOT USE!
+04.0  112    24.86   2974    1374   61647   7667     96.6    0.993  !DANGEROUS LOAD-DO NOT USE!
+05.0  113    25.10   3002    1401   63749   7726     96.9    0.980  !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    107    23.90   3001    1400   63979   7483     99.1    0.979  !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba    107    23.90   2680    1117   44574   7015     87.8    1.143

P

jason miller · Jan 1, 2018

You're the man, DrMike.

I'm probably going to play with this bullet myself this year. For what it's worth, my rifle took 26 grains to get to 3000 with the Hornady 68 bthp at 2.335". It was definitely compressed. Velocity without compression was easier with H4895.

pharmseller · Jan 1, 2018

Hodgdon lists 26 grains as max for a 70 grain SPR SP. I loaded 6 each (3 per rifle) at 25, 25.5, and 26 grains, 2.281". I'll shoot over the chrony tomorrow.

P

jason miller · Jan 1, 2018

Awesome. Please post results.

thatguySHM · Jan 2, 2018

I shoot them at a pedestrian 2850 with 23.0gr AR Comp. Single digit SD, 20" barrel, loaded 10k off the lands. They fly extremely well through the air.

SHM

Sent from my XT1650 using Tapatalk

pharmseller · Jan 2, 2018

Here's the results:

First up, T3 Superlite, 1-8"

25.0 grains, average 2824, high 2827, low 2823, ES 4

25.5 grains, average 2908, high 2929, low 2891, ES 38

26.0 grains, average 2924, high 2927, low 2920, ES 7

All brass looked great, no pressure signs.

Next, T3, 1-10"

25.0 grains, average 2851, high 2865, low 2838, ES 27

25.5 grains, average 2911, high 2934, low 2879, ES 55

26.0 grains, average 2969, high 2996, low 2937, ES 59

All brass looked great, no pressure signs.

25 grains was a little crunchy, 26 was really crunchy. I'm interested in the bullet for the Superlite, so I think I'll try a depth test with 25.5 grains and see how they shoot.

P

hunt127588 · Jan 3, 2018

Try XBR 8208 in place of Varget. You will not need to compress your charges.

hunt127588 · Jan 3, 2018

Try XBR 8208 in place of Varget. You will not need to compress your charges.

jason miller · Jan 3, 2018

Or AR Comp. Or RL15. Or H4995. But Varget works just fine, too...

QL request, .223 & 70 gr RDF, Varget

pharmseller

Handloader

DrMike

Ballistician

jason miller

Handloader

DrMike

Ballistician

pharmseller

Handloader

DrMike

Ballistician

jason miller

Handloader

pharmseller

Handloader

jason miller

Handloader

thatguySHM

Beginner

pharmseller

Handloader

hunt127588

Beginner

hunt127588

Beginner

jason miller

Handloader

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