270 Win and 140 AB-QL request

[rmarshall]

I hope I have not asked this, if so I can't find it. I recently picked a new model 70 270 win, I have a bunch of 140 ABs to run, what will R17 as well as Magpro. Oh and I should run mag primers with MagPro? thanks

 

[DrMike]

Cartridge : .270 Win. (SAAMI)
Bullet : .277, 140, Nosler AccuBond 54765
Useable Case Capaci: 59.393 grain H2O = 3.856 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Alliant Reloder-17

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 43.60 2450 1866 32755 10613 96.8 1.417
-18.0 78 44.69 2510 1958 34966 10889 97.7 1.381
-16.0 80 45.78 2569 2052 37327 11145 98.4 1.346
-14.0 82 46.87 2629 2148 39846 11378 99.0 1.304
-12.0 84 47.96 2687 2245 42539 11589 99.5 1.264
-10.0 85 49.05 2746 2344 45414 11774 99.8 1.226
-08.0 87 50.14 2804 2444 48490 11934 100.0 1.189
-06.0 89 51.23 2861 2545 51779 12067 100.0 1.154
-04.0 91 52.32 2918 2646 55301 12190 100.0 1.119 ! Near Maximum !
-02.0 93 53.41 2974 2749 59075 12309 100.0 1.087 ! Near Maximum !
+00.0 95 54.50 3029 2853 63119 12425 100.0 1.055 ! Near Maximum !
+02.0 97 55.59 3084 2957 67460 12538 100.0 1.025 !DANGEROUS LOAD-DO NOT USE!
+04.0 99 56.68 3139 3063 72084 12646 100.0 0.996 !DANGEROUS LOAD-DO NOT USE!
+06.0 101 57.77 3193 3170 77024 12751 100.0 0.967 !DANGEROUS LOAD-DO NOT USE!
+08.0 102 58.86 3247 3277 82314 12851 100.0 0.940 !DANGEROUS LOAD-DO NOT USE!
+10.0 104 59.95 3301 3387 87984 12947 100.0 0.914 !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 54.50 3135 3055 76513 11995 100.0 0.979 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 95 54.50 2867 2556 50742 12872 99.0 1.157

Cartridge : .270 Win. (SAAMI)
Bullet : .277, 140, Nosler AccuBond 54765
Useable Case Capaci: 59.393 grain H2O = 3.856 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Accurate MAGPRO

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 86 50.00 2334 1694 29817 10400 80.2 1.478
-18.0 88 51.25 2402 1793 32018 10823 82.0 1.438
-16.0 90 52.50 2470 1896 34398 11241 83.7 1.398
-14.0 92 53.75 2539 2004 36974 11651 85.4 1.359
-12.0 95 55.00 2609 2116 39765 12051 87.0 1.312
-10.0 97 56.25 2679 2232 42793 12439 88.5 1.266
-08.0 99 57.50 2751 2352 46081 12814 90.0 1.222
-06.0 101 58.75 2822 2476 49661 13172 91.4 1.180
-04.0 103 60.00 2895 2605 53558 13513 92.7 1.139
-02.0 105 61.25 2968 2738 57816 13832 93.9 1.099 ! Near Maximum !
+00.0 107 62.50 3041 2875 62472 14129 95.0 1.061 ! Near Maximum !
+02.0 110 63.75 3115 3017 67575 14401 96.0 1.024 !DANGEROUS LOAD-DO NOT USE!
+04.0 112 65.00 3189 3162 73158 14645 96.9 0.988 !DANGEROUS LOAD-DO NOT USE!
+06.0 114 66.25 3264 3312 79261 14859 97.7 0.953 !DANGEROUS LOAD-DO NOT USE!
+08.0 116 67.50 3339 3466 85970 15041 98.4 0.920 !DANGEROUS LOAD-DO NOT USE!
+10.0 118 68.75 3414 3624 93366 15189 99.0 0.887 !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 62.50 3228 3240 77398 14248 99.4 0.970 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 107 62.50 2801 2439 49333 13192 86.1 1.178

 

[rmarshall]

Thanks Doc as always you deliver!