Cartridge : .243 Win.
Bullet : .243, 75, Sierra HP 1510
Useable Case Capaci: 51.313 grain H2O = 3.332 cm³
Cartridge O.A.L. L6: 2.630 inch = 66.80 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : IMR 4831
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 93 42.30 3062 1561 42234 9805 97.0 1.237
-09.0 94 42.77 3095 1595 43682 9899 97.4 1.219
-08.0 95 43.24 3128 1630 45179 9987 97.8 1.200
-07.0 96 43.71 3161 1664 46726 10072 98.1 1.182
-06.0 98 44.18 3194 1699 48325 10152 98.5 1.164
-05.0 99 44.65 3227 1735 49978 10226 98.8 1.146
-04.0 100 45.12 3260 1770 51686 10296 99.0 1.129 ! Near Maximum !
-03.0 101 45.59 3293 1806 53453 10361 99.2 1.112 ! Near Maximum !
-02.0 102 46.06 3325 1841 55280 10420 99.5 1.096 ! Near Maximum !
-01.0 103 46.53 3358 1877 57169 10474 99.6 1.079 ! Near Maximum !
+00.0 104 47.00 3390 1914 59123 10522 99.8 1.063 ! Near Maximum !
+01.0 105 47.47 3422 1950 61144 10566 99.9 1.048 !DANGEROUS LOAD-DO NOT USE!
+02.0 106 47.94 3454 1986 63235 10603 99.9 1.032 !DANGEROUS LOAD-DO NOT USE!
+03.0 107 48.41 3485 2023 65399 10635 100.0 1.017 !DANGEROUS LOAD-DO NOT USE!
+04.0 108 48.88 3517 2059 67638 10661 100.0 1.003 !DANGEROUS LOAD-DO NOT USE!
+05.0 109 49.35 3548 2096 69957 10684 100.0 0.988 !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 104 47.00 3468 2003 65031 10325 100.0 1.020 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba 104 47.00 3295 1808 53276 10578 98.3 1.113 ! Near Maximum !Cartridge : 6 mm Rem. (SAAMI)
Bullet : .243, 75, Sierra HP 1510
Useable Case Capaci: 51.845 grain H2O = 3.366 cm³
Cartridge O.A.L. L6: 2.820 inch = 71.63 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : IMR 4831
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 98 44.73 3242 1750 45210 10890 96.8 1.151
-09.0 99 45.23 3278 1790 46809 10999 97.2 1.133
-08.0 100 45.72 3315 1830 48464 11102 97.6 1.115
-07.0 101 46.22 3352 1871 50178 11200 98.0 1.097
-06.0 102 46.72 3388 1912 51954 11294 98.3 1.080
-05.0 103 47.22 3424 1953 53793 11381 98.6 1.063
-04.0 104 47.71 3461 1994 55698 11463 98.9 1.046 ! Near Maximum !
-03.0 105 48.21 3497 2036 57673 11539 99.2 1.030 ! Near Maximum !
-02.0 106 48.71 3533 2079 59719 11609 99.4 1.014 ! Near Maximum !
-01.0 108 49.20 3569 2121 61840 11674 99.6 0.998 ! Near Maximum !
+00.0 109 49.70 3605 2164 64040 11732 99.7 0.983 ! Near Maximum !
+01.0 110 50.20 3640 2207 66321 11783 99.8 0.967 !DANGEROUS LOAD-DO NOT USE!
+02.0 111 50.69 3676 2250 68688 11828 99.9 0.952 !DANGEROUS LOAD-DO NOT USE!
+03.0 112 51.19 3711 2294 71144 11867 100.0 0.938 !DANGEROUS LOAD-DO NOT USE!
+04.0 113 51.69 3746 2337 73693 11899 100.0 0.923 !DANGEROUS LOAD-DO NOT USE!
+05.0 114 52.19 3781 2381 76340 11925 100.0 0.909 !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 109 49.70 3689 2267 70572 11512 100.0 0.942 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 5% relative to nominal value:
-Ba 109 49.70 3503 2043 57586 11789 98.2 1.029 ! Near Maximum !
