This is for RL23
Code:
Cartridge : .280 Rem.
Bullet : .284, 145, Barnes 'LRX'BT 30282
Useable Case Capaci: 58.029 grain H2O = 3.768 cm³
Cartridge O.A.L. L6: 3.330 inch = 84.58 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-23
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 90 47.10 2455 1940 31749 9068 95.5 1.465
-09.0 91 47.62 2482 1984 32692 9180 96.0 1.448
-08.0 92 48.14 2510 2028 33667 9289 96.5 1.431
-07.0 93 48.67 2538 2073 34675 9395 96.9 1.415
-06.0 94 49.19 2565 2119 35718 9496 97.3 1.399
-05.0 95 49.71 2593 2165 36794 9595 97.7 1.383
-04.0 96 50.24 2621 2211 37909 9689 98.0 1.367
-03.0 97 50.76 2648 2258 39063 9779 98.3 1.351
-02.0 98 51.28 2676 2305 40256 9865 98.6 1.335
-01.0 99 51.81 2703 2353 41489 9946 98.9 1.320
+00.0 100 52.33 2731 2401 42767 10024 99.1 1.304
+01.0 101 52.85 2759 2450 44088 10096 99.3 1.289
+02.0 102 53.38 2786 2499 45458 10164 99.5 1.274
+03.0 103 53.90 2814 2549 46876 10227 99.7 1.259
+04.0 104 54.42 2841 2599 48345 10285 99.8 1.244
+05.0 105 54.95 2868 2649 49868 10338 99.9 1.229
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 100 52.33 2875 2662 52510 9675 100.0 1.217 ! Near Maximum !
Data for burning rate decreased by 10% relative to nominal value:
-Ba 100 52.33 2531 2062 34658 9692 92.6 1.412