257 Weatherby Quick Load request please.
- Thread starter wbyfan1
- Start date
DrMike
Ballistician
- Nov 8, 2006
- 36,923
- 5,115
Cartridge : .257 Weath. Mag
Bullet : .257, 110, Nosler AccuBond 53742
Useable Case Capaci: 76.473 grain H2O = 4.965 cm³
Cartridge O.A.L. L6: 3.160 inch = 80.26 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-25
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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
-20.0 80 56.00 2794 1906 31744 11756 97.0 1.591
-18.0 82 57.40 2864 2003 33967 12056 98.0 1.550
-16.0 84 58.80 2933 2102 36350 12327 98.8 1.511
-14.0 86 60.20 3003 2202 38903 12567 99.3 1.466
-12.0 88 61.60 3071 2304 41640 12775 99.7 1.419
-10.0 90 63.00 3139 2407 44576 12947 100.0 1.375
-08.0 92 64.40 3206 2511 47726 13086 100.0 1.332
-06.0 94 65.80 3272 2615 51109 13213 100.0 1.291
-04.0 96 67.20 3337 2720 54743 13336 100.0 1.252 ! Near Maximum !
-02.0 98 68.60 3402 2826 58608 13456 100.0 1.214 ! Near Maximum !
+00.0 100 70.00 3465 2933 62724 13572 100.0 1.178 ! Near Maximum !
+02.0 102 71.40 3528 3040 67119 13684 100.0 1.143 !DANGEROUS LOAD-DO NOT USE!
+04.0 104 72.80 3590 3148 71815 13792 100.0 1.109 !DANGEROUS LOAD-DO NOT USE!
+06.0 106 74.20 3652 3258 76836 13896 100.0 1.077 !DANGEROUS LOAD-DO NOT USE!
+08.0 108 75.60 3713 3368 82210 13996 100.0 1.046 !DANGEROUS LOAD-DO NOT USE!
+10.0 110 77.00 3774 3480 87966 14090 100.0 1.016 !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 100 70.00 3590 3148 76275 13138 100.0 1.087 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 100 70.00 3274 2618 49703 14112 99.5 1.300
Cartridge : .257 Weath. Mag
Bullet : .257, 115, Nosler BalTip 25115
Useable Case Capaci: 76.606 grain H2O = 4.974 cm³
Cartridge O.A.L. L6: 3.180 inch = 80.77 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-25
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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
-20.0 79 55.44 2749 1930 31949 11807 97.7 1.617
-18.0 81 56.83 2817 2027 34174 12094 98.5 1.576
-16.0 83 58.21 2885 2125 36554 12352 99.1 1.536
-14.0 85 59.60 2952 2224 39104 12579 99.6 1.489
-12.0 87 60.98 3018 2325 41833 12772 99.9 1.443
-10.0 89 62.37 3083 2428 44750 12932 100.0 1.398
-08.0 91 63.76 3148 2530 47898 13069 100.0 1.355
-06.0 93 65.14 3211 2634 51261 13202 100.0 1.314
-04.0 95 66.53 3274 2738 54835 13332 100.0 1.274 ! Near Maximum !
-02.0 97 67.91 3336 2842 58630 13458 100.0 1.236 ! Near Maximum !
+00.0 99 69.30 3398 2948 62673 13581 100.0 1.200 ! Near Maximum !
+02.0 101 70.69 3458 3054 66984 13699 100.0 1.165 !DANGEROUS LOAD-DO NOT USE!
+04.0 103 72.07 3518 3161 71582 13814 100.0 1.131 !DANGEROUS LOAD-DO NOT USE!
+06.0 105 73.46 3578 3269 76490 13924 100.0 1.099 !DANGEROUS LOAD-DO NOT USE!
+08.0 107 74.84 3637 3379 81732 14030 100.0 1.067 !DANGEROUS LOAD-DO NOT USE!
+10.0 109 76.23 3696 3489 87338 14132 100.0 1.037 !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 99 69.30 3517 3158 75989 13158 100.0 1.108 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 99 69.30 3216 2641 49693 14142 99.7 1.324
Bullet : .257, 110, Nosler AccuBond 53742
Useable Case Capaci: 76.473 grain H2O = 4.965 cm³
Cartridge O.A.L. L6: 3.160 inch = 80.26 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-25
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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
-20.0 80 56.00 2794 1906 31744 11756 97.0 1.591
-18.0 82 57.40 2864 2003 33967 12056 98.0 1.550
-16.0 84 58.80 2933 2102 36350 12327 98.8 1.511
-14.0 86 60.20 3003 2202 38903 12567 99.3 1.466
-12.0 88 61.60 3071 2304 41640 12775 99.7 1.419
-10.0 90 63.00 3139 2407 44576 12947 100.0 1.375
-08.0 92 64.40 3206 2511 47726 13086 100.0 1.332
-06.0 94 65.80 3272 2615 51109 13213 100.0 1.291
-04.0 96 67.20 3337 2720 54743 13336 100.0 1.252 ! Near Maximum !
-02.0 98 68.60 3402 2826 58608 13456 100.0 1.214 ! Near Maximum !
+00.0 100 70.00 3465 2933 62724 13572 100.0 1.178 ! Near Maximum !
+02.0 102 71.40 3528 3040 67119 13684 100.0 1.143 !DANGEROUS LOAD-DO NOT USE!
+04.0 104 72.80 3590 3148 71815 13792 100.0 1.109 !DANGEROUS LOAD-DO NOT USE!
+06.0 106 74.20 3652 3258 76836 13896 100.0 1.077 !DANGEROUS LOAD-DO NOT USE!
+08.0 108 75.60 3713 3368 82210 13996 100.0 1.046 !DANGEROUS LOAD-DO NOT USE!
+10.0 110 77.00 3774 3480 87966 14090 100.0 1.016 !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 100 70.00 3590 3148 76275 13138 100.0 1.087 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 100 70.00 3274 2618 49703 14112 99.5 1.300
Cartridge : .257 Weath. Mag
Bullet : .257, 115, Nosler BalTip 25115
Useable Case Capaci: 76.606 grain H2O = 4.974 cm³
Cartridge O.A.L. L6: 3.180 inch = 80.77 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Alliant Reloder-25
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.0% 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
-20.0 79 55.44 2749 1930 31949 11807 97.7 1.617
-18.0 81 56.83 2817 2027 34174 12094 98.5 1.576
-16.0 83 58.21 2885 2125 36554 12352 99.1 1.536
-14.0 85 59.60 2952 2224 39104 12579 99.6 1.489
-12.0 87 60.98 3018 2325 41833 12772 99.9 1.443
-10.0 89 62.37 3083 2428 44750 12932 100.0 1.398
-08.0 91 63.76 3148 2530 47898 13069 100.0 1.355
-06.0 93 65.14 3211 2634 51261 13202 100.0 1.314
-04.0 95 66.53 3274 2738 54835 13332 100.0 1.274 ! Near Maximum !
-02.0 97 67.91 3336 2842 58630 13458 100.0 1.236 ! Near Maximum !
+00.0 99 69.30 3398 2948 62673 13581 100.0 1.200 ! Near Maximum !
+02.0 101 70.69 3458 3054 66984 13699 100.0 1.165 !DANGEROUS LOAD-DO NOT USE!
+04.0 103 72.07 3518 3161 71582 13814 100.0 1.131 !DANGEROUS LOAD-DO NOT USE!
+06.0 105 73.46 3578 3269 76490 13924 100.0 1.099 !DANGEROUS LOAD-DO NOT USE!
+08.0 107 74.84 3637 3379 81732 14030 100.0 1.067 !DANGEROUS LOAD-DO NOT USE!
+10.0 109 76.23 3696 3489 87338 14132 100.0 1.037 !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 99 69.30 3517 3158 75989 13158 100.0 1.108 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 99 69.30 3216 2641 49693 14142 99.7 1.324
- Thread starter
- #3
DrMike
Ballistician
- Nov 8, 2006
- 36,923
- 5,115
De nada. My pleasure.
