280 AI 168 gr ABLR
- Thread starter JD338
- Start date
- Thread starter
- #22
- Nov 4, 2004
- 25,343
- 8,903
I reshot this load today to verify. Not quite as good but still pretty decent at .480".
Just realized that this load is 59.0 grs IMR7828SSC and the first one was 59.5 grs. Dugh!
JD338
Just realized that this load is 59.0 grs IMR7828SSC and the first one was 59.5 grs. Dugh!
JD338
DrMike
Ballistician
- Nov 8, 2006
- 37,402
- 6,213
Still close enough for game. That extra 0.5 grain may mean quite a significant difference.
6mm Remington
Ammo Smith
- Feb 27, 2006
- 5,255
- 626
I think I would call her good and go hunting sir!
- Thread starter
- #25
- Nov 4, 2004
- 25,343
- 8,903
I need to reshoot this load with 59.5 grs of IMR 7828SSC.
I can't believe I did that!
JD338
I can't believe I did that!
JD338
This is the powder I want to work up.
I've got a good load with the 150ABLR and 7828ssc but I haven't had much luck with the 168.
Scott
Code:
Cartridge : .280 Ack Imp
Bullet : .284, 168, Nosler Accubond LR 58623
Useable Case Capaci: 63.532 grain H2O = 4.125 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26
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 81 50.80 2440 2221 30884 9788 97.3 1.701
-18.0 83 52.07 2504 2339 33170 10027 98.2 1.654
-16.0 85 53.34 2568 2460 35639 10240 98.9 1.608
-14.0 87 54.61 2631 2583 38309 10425 99.5 1.559
-12.0 89 55.88 2694 2708 41201 10582 99.8 1.507
-10.0 91 57.15 2757 2835 44335 10709 100.0 1.457
-08.0 93 58.42 2819 2964 47735 10808 100.0 1.409
-06.0 95 59.69 2880 3093 51428 10900 100.0 1.362
-04.0 97 60.96 2940 3225 55446 10989 100.0 1.318 ! Near Maximum !
-02.0 99 62.23 3000 3357 59812 11073 100.0 1.275 ! Near Maximum !
+00.0 101 63.50 3059 3491 64520 11153 100.0 1.234 !DANGEROUS LOAD-DO NOT USE!
+02.0 103 64.77 3118 3627 69617 11229 100.0 1.194 !DANGEROUS LOAD-DO NOT USE!
+04.0 105 66.04 3177 3765 75146 11300 100.0 1.156 !DANGEROUS LOAD-DO NOT USE!
+06.0 107 67.31 3235 3905 81154 11366 100.0 1.119 !DANGEROUS LOAD-DO NOT USE!
+08.0 109 68.58 3294 4047 87694 11427 100.0 1.084 !DANGEROUS LOAD-DO NOT USE!
+10.0 111 69.85 3352 4191 94829 11482 100.0 1.050 !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 101 63.50 3174 3758 81017 10695 100.0 1.134 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 101 63.50 2880 3094 49563 11750 99.5 1.370I've got a good load with the 150ABLR and 7828ssc but I haven't had much luck with the 168.
Scott
