Quick load for 7mm Weatherby
- Thread starter 69gto
- Start date
DrMike
Ballistician
- Nov 8, 2006
- 36,902
- 5,063
Code:
Cartridge : 7 mm Weath. Mag.
Bullet : .284, 150, Nosler BalTip 28150
Useable Case Capaci: 79.421 grain H2O = 5.157 cm³
Cartridge O.A.L. L6: 3.360 inch = 85.34 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-26
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 85 67.14 2890 2781 44196 13511 99.8 1.370
-09.0 86 67.89 2923 2845 45803 13598 99.9 1.347
-08.0 87 68.63 2955 2909 47460 13676 100.0 1.325
-07.0 88 69.38 2988 2973 49174 13744 100.0 1.304
-06.0 89 70.12 3020 3038 50948 13810 100.0 1.282
-05.0 90 70.87 3052 3103 52783 13875 100.0 1.261
-04.0 91 71.62 3084 3168 54683 13939 100.0 1.241 ! Near Maximum !
-03.0 92 72.36 3116 3234 56649 14002 100.0 1.221 ! Near Maximum !
-02.0 93 73.11 3147 3299 58685 14064 100.0 1.201 ! Near Maximum !
-01.0 94 73.85 3179 3365 60794 14125 100.0 1.182 ! Near Maximum !
+00.0 95 74.60 3210 3432 62977 14184 100.0 1.163 ! Near Maximum !
+01.0 96 75.35 3241 3499 65238 14243 100.0 1.145 !DANGEROUS LOAD-DO NOT USE!
+02.0 97 76.09 3272 3566 67582 14300 100.0 1.127 !DANGEROUS LOAD-DO NOT USE!
+03.0 98 76.84 3303 3633 70010 14356 100.0 1.109 !DANGEROUS LOAD-DO NOT USE!
+04.0 99 77.58 3334 3701 72527 14411 100.0 1.091 !DANGEROUS LOAD-DO NOT USE!
+05.0 100 78.33 3364 3770 75137 14465 100.0 1.074 !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 74.60 3338 3711 77835 13671 100.0 1.066 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 95 74.60 3012 3022 48541 14760 99.1 1.297
Code:
Cartridge : 7 mm Weath. Mag.
Bullet : .284, 150, Nosler PART SP 16326
Useable Case Capaci: 80.456 grain H2O = 5.224 cm³
Cartridge O.A.L. L6: 3.360 inch = 85.34 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Alliant Reloder-26
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 85 67.68 2891 2785 44324 13651 99.9 1.369
-09.0 86 68.43 2924 2848 45924 13738 100.0 1.347
-08.0 87 69.18 2957 2912 47576 13816 100.0 1.325
-07.0 88 69.94 2989 2976 49284 13885 100.0 1.303
-06.0 89 70.69 3021 3041 51052 13953 100.0 1.282
-05.0 90 71.44 3053 3105 52881 14019 100.0 1.261
-04.0 91 72.19 3085 3170 54773 14085 100.0 1.241 ! Near Maximum !
-03.0 91 72.94 3117 3236 56731 14149 100.0 1.221 ! Near Maximum !
-02.0 92 73.70 3148 3301 58758 14213 100.0 1.201 ! Near Maximum !
-01.0 93 74.45 3180 3367 60856 14275 100.0 1.182 ! Near Maximum !
+00.0 94 75.20 3211 3433 63027 14336 100.0 1.163 ! Near Maximum !
+01.0 95 75.95 3242 3500 65276 14396 100.0 1.145 !DANGEROUS LOAD-DO NOT USE!
+02.0 96 76.70 3273 3567 67605 14455 100.0 1.127 !DANGEROUS LOAD-DO NOT USE!
+03.0 97 77.46 3303 3634 70018 14513 100.0 1.109 !DANGEROUS LOAD-DO NOT USE!
+04.0 98 78.21 3334 3702 72518 14569 100.0 1.092 !DANGEROUS LOAD-DO NOT USE!
+05.0 99 78.96 3364 3770 75109 14625 100.0 1.075 !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 75.20 3338 3712 77781 13824 100.0 1.066 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 94 75.20 3014 3025 48626 14919 99.2 1.297- Thread starter
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