Can some one do a quick load for me please,
280ai nosler brass 168 vld Berger rl 26 with 60 grains of powder. Load shoots .3 groups. Want to make sure it's safe
Cartridge : .280 Ack Imp
Bullet : .284, 168, Berger VLD #28401
Useable Case Capaci: 64.408 grain H2O = 4.182 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 75 48.00 2458 2254 32333 9360 99.7 1.688
-18.0 77 49.20 2516 2361 34686 9513 99.9 1.644
-16.0 79 50.40 2573 2470 37219 9640 100.0 1.599
-14.0 81 51.60 2630 2579 39946 9758 100.0 1.548
-12.0 83 52.80 2685 2690 42838 9873 100.0 1.499
-10.0 85 54.00 2740 2801 45913 9986 100.0 1.453
-08.0 86 55.20 2794 2913 49196 10095 100.0 1.409
-06.0 88 56.40 2848 3026 52702 10202 100.0 1.366
-04.0 90 57.60 2901 3140 56449 10305 100.0 1.325 ! Near Maximum !
-02.0 92 58.80 2954 3255 60455 10406 100.0 1.286 ! Near Maximum !
+00.0 94 60.00 3006 3371 64740 10502 100.0 1.248 !DANGEROUS LOAD-DO NOT USE!
+02.0 96 61.20 3058 3489 69328 10596 100.0 1.212 !DANGEROUS LOAD-DO NOT USE!
+04.0 98 62.40 3110 3608 74243 10686 100.0 1.177 !DANGEROUS LOAD-DO NOT USE!
+06.0 100 63.60 3161 3728 79516 10771 100.0 1.143 !DANGEROUS LOAD-DO NOT USE!
+08.0 102 64.80 3213 3850 85178 10853 100.0 1.111 !DANGEROUS LOAD-DO NOT USE!
+10.0 103 66.00 3264 3974 91266 10931 100.0 1.080 !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 94 60.00 3099 3583 79586 10140 100.0 1.155 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 94 60.00 2864 3060 50092 11036 100.0 1.378
Even though there is a "dangerous" on the line of your load, the pressure is under the 65 mark. (a little :grin: ) Only you can tell if it's safe in your rifle, but I'd probably shoot it.
