Here are a few runs to give you an idea of what different powders like.
Cartridge : .264 Win. Mag.
Bullet : .264, 127, Barnes 'LRX'BT 30228
Useable Case Capaci: 74.371 grain H2O = 4.829 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Hodgdon H4831 SC *T
Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.769% 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
-07.7 87 60.00 2994 2527 48799 12127 97.6 1.351
-06.9 87 60.50 3018 2568 49996 12218 97.9 1.336
-06.2 88 61.00 3042 2609 51221 12307 98.1 1.321
-05.4 89 61.50 3066 2650 52476 12392 98.3 1.306
-04.6 89 62.00 3090 2692 53761 12476 98.6 1.292
-03.8 90 62.50 3114 2734 55078 12556 98.8 1.277
-03.1 91 63.00 3138 2776 56426 12633 98.9 1.263 ! Near Maximum !
-02.3 92 63.50 3161 2818 57807 12708 99.1 1.249 ! Near Maximum !
-01.5 92 64.00 3185 2861 59222 12780 99.3 1.235 ! Near Maximum !
-00.8 93 64.50 3209 2904 60672 12848 99.4 1.221 ! Near Maximum !
+00.0 94 65.00 3233 2947 62157 12913 99.5 1.208 ! Near Maximum !
+00.8 95 65.50 3256 2990 63679 12975 99.6 1.195 ! Near Maximum !
+01.5 95 66.00 3280 3033 65239 13034 99.7 1.182 !DANGEROUS LOAD-DO NOT USE!
+02.3 96 66.50 3303 3077 66838 13090 99.8 1.169 !DANGEROUS LOAD-DO NOT USE!
+03.1 97 67.00 3327 3121 68477 13142 99.9 1.156 !DANGEROUS LOAD-DO NOT USE!
+03.8 97 67.50 3350 3165 70158 13191 99.9 1.143 !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 65.00 3361 3184 73111 12535 100.0 1.125 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 94 65.00 3053 2627 51313 12736 95.3 1.317
Cartridge : .264 Win. Mag.
Bullet : .264, 127, Barnes 'LRX'BT 30228
Useable Case Capaci: 74.371 grain H2O = 4.829 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Hodgdon H1000 *T
Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.714% 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
-07.1 96 65.00 3030 2589 47401 12726 98.4 1.359
-06.4 97 65.50 3055 2632 48605 12805 98.6 1.343
-05.7 97 66.00 3080 2675 49843 12880 98.8 1.327
-05.0 98 66.50 3105 2718 51116 12951 99.0 1.312
-04.3 99 67.00 3130 2762 52425 13018 99.2 1.297
-03.6 100 67.50 3155 2806 53769 13081 99.4 1.281
-02.9 100 68.00 3179 2850 55153 13140 99.5 1.267
-02.1 101 68.50 3204 2895 56576 13195 99.7 1.252 ! Near Maximum !
-01.4 102 69.00 3229 2939 58040 13246 99.8 1.237 ! Near Maximum !
-00.7 102 69.50 3253 2984 59547 13292 99.9 1.223 ! Near Maximum !
+00.0 103 70.00 3278 3029 61094 13334 99.9 1.209 ! Near Maximum !
+00.7 104 70.50 3302 3075 62691 13371 100.0 1.195 ! Near Maximum !
+01.4 105 71.00 3327 3120 64335 13404 100.0 1.181 !DANGEROUS LOAD-DO NOT USE!
+02.1 105 71.50 3351 3166 66027 13433 100.0 1.167 !DANGEROUS LOAD-DO NOT USE!
+02.9 106 72.00 3375 3212 67769 13459 100.0 1.154 !DANGEROUS LOAD-DO NOT USE!
+03.6 107 72.50 3399 3258 69564 13485 100.0 1.140 !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 103 70.00 3422 3303 74736 12787 100.0 1.114 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 103 70.00 3064 2648 49193 13294 95.7 1.332
Cartridge : .264 Win. Mag.
Bullet : .264, 127, Barnes 'LRX'BT 30228
Useable Case Capaci: 74.371 grain H2O = 4.829 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Hodgdon Retumbo
Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.676% 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
-06.8 100 69.00 3128 2759 49259 13408 100.0 1.344
-06.1 101 69.50 3152 2801 50484 13444 100.0 1.329
-05.4 102 70.00 3175 2843 51742 13481 100.0 1.314
-04.7 102 70.50 3199 2885 53033 13516 100.0 1.299
-04.1 103 71.00 3222 2927 54362 13551 100.0 1.284
-03.4 104 71.50 3245 2970 55726 13586 100.0 1.270 ! Near Maximum !
-02.7 104 72.00 3268 3012 57128 13620 100.0 1.256 ! Near Maximum !
-02.0 105 72.50 3292 3055 58571 13653 100.0 1.241 ! Near Maximum !
-01.4 106 73.00 3315 3098 60055 13686 100.0 1.228 ! Near Maximum !
-00.7 107 73.50 3338 3141 61579 13718 100.0 1.214 ! Near Maximum !
+00.0 107 74.00 3360 3184 63150 13750 100.0 1.200 ! Near Maximum !
+00.7 108 74.50 3383 3228 64764 13781 100.0 1.187 !DANGEROUS LOAD-DO NOT USE!
+01.4 109 75.00 3406 3271 66425 13812 100.0 1.173 !DANGEROUS LOAD-DO NOT USE!
+02.0 110 75.50 3429 3315 68134 13842 100.0 1.160 !DANGEROUS LOAD-DO NOT USE!
+02.7 110 76.00 3451 3359 69894 13871 100.0 1.147 !DANGEROUS LOAD-DO NOT USE!
+03.4 111 76.50 3474 3403 71707 13900 100.0 1.134 !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 107 74.00 3497 3449 78929 13228 100.0 1.100 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 107 74.00 3147 2793 49781 14321 99.0 1.331
Cartridge : .264 Win. Mag.
Bullet : .264, 127, Barnes 'LRX'BT 30228
Useable Case Capaci: 74.371 grain H2O = 4.829 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-26 *C
Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.735% 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
-07.4 85 63.00 3105 2718 49695 12941 100.0 1.368
-06.6 86 63.50 3128 2759 50971 12989 100.0 1.352
-05.9 87 64.00 3151 2800 52277 13036 100.0 1.336
-05.1 88 64.50 3174 2841 53615 13083 100.0 1.321
-04.4 88 65.00 3197 2883 54985 13129 100.0 1.306
-03.7 89 65.50 3220 2924 56389 13175 100.0 1.291 ! Near Maximum !
-02.9 90 66.00 3243 2965 57827 13220 100.0 1.276 ! Near Maximum !
-02.2 90 66.50 3266 3007 59300 13264 100.0 1.261 ! Near Maximum !
-01.5 91 67.00 3288 3049 60810 13309 100.0 1.247 ! Near Maximum !
-00.7 92 67.50 3311 3091 62356 13352 100.0 1.233 ! Near Maximum !
+00.0 92 68.00 3333 3133 63941 13395 100.0 1.219 ! Near Maximum !
+00.7 93 68.50 3356 3175 65565 13438 100.0 1.205 !DANGEROUS LOAD-DO NOT USE!
+01.5 94 69.00 3378 3217 67229 13480 100.0 1.192 !DANGEROUS LOAD-DO NOT USE!
+02.2 94 69.50 3400 3260 68935 13521 100.0 1.179 !DANGEROUS LOAD-DO NOT USE!
+02.9 95 70.00 3422 3302 70684 13562 100.0 1.165 !DANGEROUS LOAD-DO NOT USE!
+03.7 96 70.50 3444 3345 72477 13602 100.0 1.152 !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 92 68.00 3453 3363 78300 12947 100.0 1.121 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 92 68.00 3148 2795 49685 14022 99.8 1.354
Cartridge : .264 Win. Mag.
Bullet : .264, 127, Barnes 'LRX'BT 30228
Useable Case Capaci: 74.371 grain H2O = 4.829 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-33 *C
Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.64% 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
-06.4 98 73.09 3108 2724 48356 14555 95.2 1.370
-05.8 99 73.59 3134 2770 49588 14664 95.6 1.354
-05.1 100 74.09 3160 2816 50857 14770 95.9 1.338
-04.5 100 74.59 3186 2863 52162 14872 96.3 1.322
-03.8 101 75.09 3213 2910 53507 14971 96.6 1.307
-03.2 102 75.59 3239 2958 54893 15066 97.0 1.291
-02.6 102 76.09 3265 3006 56320 15158 97.3 1.276 ! Near Maximum !
-01.9 103 76.59 3292 3055 57792 15245 97.6 1.261 ! Near Maximum !
-01.3 104 77.09 3318 3104 59304 15329 97.9 1.246 ! Near Maximum !
-00.6 104 77.59 3344 3153 60857 15409 98.1 1.232 ! Near Maximum !
+00.0 105 78.09 3370 3203 62451 15485 98.4 1.217 ! Near Maximum !
+00.6 106 78.59 3397 3254 64089 15556 98.6 1.203 ! Near Maximum !
+01.3 106 79.09 3423 3304 65774 15624 98.8 1.189 !DANGEROUS LOAD-DO NOT USE!
+01.9 107 79.59 3449 3355 67508 15687 99.0 1.175 !DANGEROUS LOAD-DO NOT USE!
+02.6 108 80.09 3476 3407 69294 15745 99.2 1.161 !DANGEROUS LOAD-DO NOT USE!
+03.2 108 80.59 3502 3458 71131 15799 99.3 1.147 !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 105 78.09 3571 3595 78612 15065 100.0 1.105 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 105 78.09 3094 2700 48071 14781 90.7 1.364
Cartridge : .264 Win. Mag.
Bullet : .264, 127, Barnes 'LRX'BT 30228
Useable Case Capaci: 74.371 grain H2O = 4.829 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : IMR 7828 SSC
Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.758% 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
-07.6 87 61.00 3062 2644 48524 12983 98.3 1.349
-06.8 87 61.50 3087 2688 49757 13071 98.5 1.333
-06.1 88 62.00 3112 2732 51023 13156 98.7 1.318
-05.3 89 62.50 3137 2775 52323 13237 98.9 1.303
-04.5 89 63.00 3162 2820 53657 13315 99.1 1.287
-03.8 90 63.50 3187 2864 55027 13389 99.3 1.273
-03.0 91 64.00 3212 2909 56430 13459 99.4 1.258 ! Near Maximum !
-02.3 92 64.50 3236 2954 57864 13526 99.6 1.244 ! Near Maximum !
-01.5 92 65.00 3261 2999 59331 13588 99.7 1.230 ! Near Maximum !
-00.8 93 65.50 3286 3044 60831 13646 99.8 1.216 ! Near Maximum !
+00.0 94 66.00 3310 3089 62370 13701 99.9 1.202 ! Near Maximum !
+00.8 94 66.50 3334 3135 63948 13751 99.9 1.189 ! Near Maximum !
+01.5 95 67.00 3359 3181 65565 13797 100.0 1.175 !DANGEROUS LOAD-DO NOT USE!
+02.3 96 67.50 3383 3227 67224 13839 100.0 1.162 !DANGEROUS LOAD-DO NOT USE!
+03.0 97 68.00 3407 3273 68926 13877 100.0 1.149 !DANGEROUS LOAD-DO NOT USE!
+03.8 97 68.50 3431 3319 70671 13912 100.0 1.136 !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 66.00 3448 3352 74994 13180 100.0 1.112 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 94 66.00 3109 2726 50253 13648 95.8 1.321
Cartridge : .264 Win. Mag.
Bullet : .264, 127, Barnes 'LRX'BT 30228
Useable Case Capaci: 74.371 grain H2O = 4.829 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Ramshot Magnum
Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.704% 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
-07.0 88 66.00 3030 2589 48449 12441 99.6 1.369
-06.3 89 66.50 3054 2630 49723 12497 99.7 1.353
-05.6 90 67.00 3078 2672 51028 12549 99.8 1.337
-04.9 90 67.50 3102 2713 52370 12597 99.9 1.321
-04.2 91 68.00 3126 2755 53747 12640 99.9 1.305
-03.5 92 68.50 3150 2798 55163 12679 100.0 1.290
-02.8 92 69.00 3174 2840 56617 12714 100.0 1.275 ! Near Maximum !
-02.1 93 69.50 3197 2883 58112 12746 100.0 1.260 ! Near Maximum !
-01.4 94 70.00 3221 2926 59648 12776 100.0 1.245 ! Near Maximum !
-00.7 94 70.50 3245 2969 61228 12806 100.0 1.230 ! Near Maximum !
+00.0 95 71.00 3268 3012 62851 12836 100.0 1.216 ! Near Maximum !
+00.7 96 71.50 3292 3055 64521 12865 100.0 1.201 !DANGEROUS LOAD-DO NOT USE!
+01.4 96 72.00 3315 3099 66239 12893 100.0 1.187 !DANGEROUS LOAD-DO NOT USE!
+02.1 97 72.50 3338 3142 68005 12921 100.0 1.173 !DANGEROUS LOAD-DO NOT USE!
+02.8 98 73.00 3361 3186 69823 12948 100.0 1.160 !DANGEROUS LOAD-DO NOT USE!
+03.5 98 73.50 3385 3230 71693 12974 100.0 1.146 !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 95 71.00 3401 3262 77117 12335 100.0 1.118 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 95 71.00 3065 2649 49140 13144 97.8 1.348
Cartridge : .264 Win. Mag.
Bullet : .264, 127, Barnes 'LRX'BT 30228
Useable Case Capaci: 74.371 grain H2O = 4.829 cm³
Cartridge O.A.L. L6: 3.340 inch = 84.84 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Vihtavuori N570 *C
Predicted data by increasing and decreasing the given charge,
incremented in steps of 0.667% 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
-06.7 97 70.00 3141 2782 49353 14779 95.0 1.354
-06.0 98 70.50 3168 2829 50609 14893 95.4 1.338
-05.3 98 71.00 3194 2877 51904 15004 95.8 1.322
-04.7 99 71.50 3221 2925 53233 15111 96.1 1.307
-04.0 100 72.00 3247 2973 54601 15215 96.5 1.292
-03.3 100 72.50 3273 3022 56005 15316 96.8 1.277 ! Near Maximum !
-02.7 101 73.00 3300 3071 57442 15413 97.1 1.262 ! Near Maximum !
-02.0 102 73.50 3326 3120 58915 15506 97.4 1.247 ! Near Maximum !
-01.3 102 74.00 3353 3170 60425 15595 97.7 1.233 ! Near Maximum !
-00.7 103 74.50 3379 3220 61976 15680 98.0 1.218 ! Near Maximum !
+00.0 104 75.00 3406 3271 63569 15762 98.2 1.204 ! Near Maximum !
+00.7 104 75.50 3432 3322 65206 15839 98.5 1.190 !DANGEROUS LOAD-DO NOT USE!
+01.3 105 76.00 3459 3373 66888 15912 98.7 1.177 !DANGEROUS LOAD-DO NOT USE!
+02.0 106 76.50 3485 3425 68616 15980 98.9 1.163 !DANGEROUS LOAD-DO NOT USE!
+02.7 107 77.00 3511 3477 70392 16045 99.1 1.150 !DANGEROUS LOAD-DO NOT USE!
+03.3 107 77.50 3538 3529 72217 16105 99.2 1.136 !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 104 75.00 3602 3658 79231 15354 100.0 1.097 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 104 75.00 3137 2775 49249 15076 90.7 1.346
