Idahotrophyhunter
Beginner
- Feb 18, 2011
- 182
- 0
Can anyone start me off with some starting data? Possibly with r15 if possible but open to much of anything. If I do this load, I will be trying to seat longer than standard 2.800.
.308 winchester 190 accubond lr....
- Thread starter Idahotrophyhunter
- Start date
DrMike
Ballistician
- Nov 8, 2006
- 37,544
- 6,624
Cartridge : .308 Win. (SAAMI)
Bullet : .308, 190, Nosler AccuBond LR 58456 G7
Useable Case Capaci: 44.201 grain H2O = 2.870 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Alliant Reloder-15
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 82 33.60 2066 1801 32241 6418 92.2 1.516
-18.0 85 34.44 2116 1888 34373 6604 93.3 1.477
-16.0 87 35.28 2165 1977 36644 6782 94.2 1.439
-14.0 89 36.12 2214 2068 39063 6954 95.1 1.398
-12.0 91 36.96 2263 2160 41642 7117 95.9 1.357
-10.0 93 37.80 2312 2254 44390 7273 96.7 1.318
-08.0 95 38.64 2360 2350 47321 7419 97.4 1.280
-06.0 97 39.48 2409 2448 50447 7556 98.0 1.244
-04.0 99 40.32 2457 2547 53786 7682 98.5 1.209 ! Near Maximum !
-02.0 101 41.16 2505 2648 57352 7799 98.9 1.175 ! Near Maximum !
+00.0 103 42.00 2553 2750 61165 7904 99.3 1.143 ! Near Maximum !
+02.0 105 42.84 2601 2854 65246 7997 99.6 1.112 !DANGEROUS LOAD-DO NOT USE!
+04.0 107 43.68 2648 2959 69618 8079 99.8 1.081 !DANGEROUS LOAD-DO NOT USE!
+06.0 109 44.52 2695 3065 74308 8148 99.9 1.052 !DANGEROUS LOAD-DO NOT USE!
+08.0 111 45.36 2742 3173 79346 8203 100.0 1.024 !DANGEROUS LOAD-DO NOT USE!
+10.0 113 46.20 2789 3282 84765 8248 100.0 0.997 !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 42.00 2653 2970 72966 7601 100.0 1.066 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 103 42.00 2411 2452 49746 7849 94.7 1.245
Bullet : .308, 190, Nosler AccuBond LR 58456 G7
Useable Case Capaci: 44.201 grain H2O = 2.870 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length : 22.0 inch = 558.8 mm
Powder : Alliant Reloder-15
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 82 33.60 2066 1801 32241 6418 92.2 1.516
-18.0 85 34.44 2116 1888 34373 6604 93.3 1.477
-16.0 87 35.28 2165 1977 36644 6782 94.2 1.439
-14.0 89 36.12 2214 2068 39063 6954 95.1 1.398
-12.0 91 36.96 2263 2160 41642 7117 95.9 1.357
-10.0 93 37.80 2312 2254 44390 7273 96.7 1.318
-08.0 95 38.64 2360 2350 47321 7419 97.4 1.280
-06.0 97 39.48 2409 2448 50447 7556 98.0 1.244
-04.0 99 40.32 2457 2547 53786 7682 98.5 1.209 ! Near Maximum !
-02.0 101 41.16 2505 2648 57352 7799 98.9 1.175 ! Near Maximum !
+00.0 103 42.00 2553 2750 61165 7904 99.3 1.143 ! Near Maximum !
+02.0 105 42.84 2601 2854 65246 7997 99.6 1.112 !DANGEROUS LOAD-DO NOT USE!
+04.0 107 43.68 2648 2959 69618 8079 99.8 1.081 !DANGEROUS LOAD-DO NOT USE!
+06.0 109 44.52 2695 3065 74308 8148 99.9 1.052 !DANGEROUS LOAD-DO NOT USE!
+08.0 111 45.36 2742 3173 79346 8203 100.0 1.024 !DANGEROUS LOAD-DO NOT USE!
+10.0 113 46.20 2789 3282 84765 8248 100.0 0.997 !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 42.00 2653 2970 72966 7601 100.0 1.066 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 103 42.00 2411 2452 49746 7849 94.7 1.245
