Cartridge : .243 Win.
Bullet : .243, 75, Sierra HP 1510
Useable Case Capaci: 51.958 grain H2O = 3.374 cm³
Cartridge O.A.L. L6: 2.685 inch = 68.20 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : IMR 4064
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 84 37.80 2988 1487 44041 10208 97.5 1.140
-09.0 84 38.22 3018 1517 45357 10305 97.8 1.125
-08.0 85 38.64 3047 1546 46709 10399 98.1 1.110
-07.0 86 39.06 3076 1576 48097 10490 98.4 1.095
-06.0 87 39.48 3105 1605 49523 10577 98.7 1.080
-05.0 88 39.90 3134 1635 50988 10659 98.9 1.066
-04.0 89 40.32 3162 1665 52492 10739 99.1 1.052 ! Near Maximum !
-03.0 90 40.74 3191 1696 54037 10814 99.3 1.038 ! Near Maximum !
-02.0 91 41.16 3219 1726 55625 10885 99.5 1.024 ! Near Maximum !
-01.0 92 41.58 3247 1756 57256 10952 99.6 1.011 ! Near Maximum !
+00.0 93 42.00 3275 1787 58931 11015 99.7 0.998 ! Near Maximum !
+01.0 94 42.42 3303 1817 60653 11074 99.8 0.985 !DANGEROUS LOAD-DO NOT USE!
+02.0 95 42.84 3331 1848 62422 11128 99.9 0.972 !DANGEROUS LOAD-DO NOT USE!
+03.0 96 43.26 3359 1879 64239 11179 100.0 0.960 !DANGEROUS LOAD-DO NOT USE!
+04.0 97 43.68 3386 1909 66108 11224 100.0 0.948 !DANGEROUS LOAD-DO NOT USE!
+05.0 97 44.10 3413 1940 68028 11266 100.0 0.936 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 5% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 5% relative to nominal value:
+Ba 93 42.00 3339 1857 63600 10859 100.0 0.963 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba 93 42.00 3199 1704 54255 11049 98.5 1.037 ! Near Maximum !
