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Cartridge : .270 Win. (SAAMI)
Bullet : .277, 160, Nosler PART SSP 16324
Useable Case Capaci: 59.367 grain H2O = 3.855 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Alliant Reloder-23 *C *T
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 95 51.12 2570 2346 44958 11583 100.0 1.315
-09.0 97 51.69 2597 2396 46524 11649 100.0 1.294
-08.0 98 52.26 2624 2447 48147 11714 100.0 1.273
-07.0 99 52.82 2651 2498 49831 11778 100.0 1.253
-06.0 100 53.39 2678 2548 51564 11841 100.0 1.234
-05.0 101 53.96 2705 2600 53389 11904 100.0 1.215
-04.0 102 54.53 2732 2651 55272 11965 100.0 1.196 ! Near Maximum !
-03.0 103 55.10 2758 2703 57216 12026 100.0 1.178 ! Near Maximum !
-02.0 104 55.66 2785 2755 59223 12085 100.0 1.160 ! Near Maximum !
-01.0 105 56.23 2811 2807 61295 12144 100.0 1.142 ! Near Maximum !
+00.0 106 56.80 2837 2860 63441 12202 100.0 1.124 ! Near Maximum !
+01.0 107 57.37 2863 2913 65663 12258 100.0 1.108 !DANGEROUS LOAD-DO NOT USE!
+02.0 108 57.94 2889 2966 67965 12314 100.0 1.091 !DANGEROUS LOAD-DO NOT USE!
+03.0 109 58.50 2915 3019 70350 12368 100.0 1.074 !DANGEROUS LOAD-DO NOT USE!
+04.0 110 59.07 2941 3073 72822 12422 100.0 1.058 !DANGEROUS LOAD-DO NOT USE!
+05.0 111 59.64 2967 3128 75384 12474 100.0 1.043 !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 106 56.80 2934 3057 77490 11788 100.0 1.041 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 106 56.80 2689 2568 50107 12757 99.7 1.238