Cartridge : .25-284 Win
Bullet : .257, 115, Nosler BalTip 25115
Useable Case Capaci: 56.584 grain H2O = 3.674 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Winchester 6,5 StaBall *T*C
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 86 48.06 2812 2019 45447 9784 100.0 1.295
-09.0 87 48.59 2840 2059 46956 9840 100.0 1.275
-08.0 88 49.13 2867 2099 48515 9896 100.0 1.257
-07.0 88 49.66 2895 2140 50128 9950 100.0 1.238
-06.0 89 50.20 2922 2180 51797 10004 100.0 1.220
-05.0 90 50.73 2949 2221 53524 10058 100.0 1.203
-04.0 91 51.26 2976 2262 55310 10110 100.0 1.185 ! Near Maximum !
-03.0 92 51.80 3003 2303 57158 10162 100.0 1.168 ! Near Maximum !
-02.0 93 52.33 3030 2345 59076 10213 100.0 1.152 ! Near Maximum !
-01.0 94 52.87 3057 2386 61053 10263 100.0 1.135 ! Near Maximum !
+00.0 95 53.40 3084 2428 63092 10313 100.0 1.119 ! Near Maximum !
+01.0 96 53.93 3110 2470 65197 10361 100.0 1.104 !DANGEROUS LOAD-DO NOT USE!
+02.0 97 54.47 3137 2512 67373 10409 100.0 1.088 !DANGEROUS LOAD-DO NOT USE!
+03.0 98 55.00 3163 2555 69626 10456 100.0 1.073 !DANGEROUS LOAD-DO NOT USE!
+04.0 99 55.54 3189 2597 71957 10502 100.0 1.058 !DANGEROUS LOAD-DO NOT USE!
+05.0 100 56.07 3216 2640 74370 10548 100.0 1.043 !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 53.40 3173 2571 74822 10020 100.0 1.048 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 95 53.40 2948 2220 51661 10705 99.8 1.215desertcj":17j4rika said:
