Running out of time-340roy,225gr accu.,imr4831-NEED ELK MEDS
- Thread starter lechero
- Start date
Alaska
Handloader
- Aug 20, 2006
- 951
- 401
81.0 of IMR 4831
Fed 215
Norma Brass
but the best load is IMR 7828 @ 88.0
Real good luck with RL 22 and IMR 7828 in the 340
Fed 215
Norma Brass
but the best load is IMR 7828 @ 88.0
Real good luck with RL 22 and IMR 7828 in the 340
- Oct 30, 2004
- 24,395
- 3,324
Cartridge : .340 Weath. Mag.
Bullet : .338, 225, Nosler AccuBond 54357
Cartridge O.A.L. L6: 3.675 inch or 93.35 mm
Barrel Length : 26.0 inch or 660.4 mm
Powder : IMR 4831
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 84 64.00 2373 2812 31420 8309 94.9 1.663
-18.0 86 65.60 2430 2949 33545 8533 95.9 1.618
-16.0 88 67.20 2487 3089 35808 8745 96.8 1.576
-14.0 90 68.80 2543 3232 38218 8944 97.5 1.532
-12.0 92 70.40 2600 3377 40787 9129 98.2 1.486
-10.0 94 72.00 2656 3524 43524 9299 98.8 1.441
-08.0 96 73.60 2712 3674 46441 9454 99.2 1.398
-06.0 98 75.20 2767 3826 49551 9593 99.6 1.357
-04.0 100 76.80 2822 3979 52869 9714 99.8 1.318
-02.0 102 78.40 2877 4135 56409 9818 100.0 1.280 ! Near Maximum !
+00.0 104 80.00 2931 4292 60190 9904 100.0 1.243 ! Near Maximum !
+02.0 107 81.60 2984 4450 64231 9980 100.0 1.208 !DANGEROUS LOAD-DO NOT USE!
+04.0 109 83.20 3038 4610 68554 10053 100.0 1.174 !DANGEROUS LOAD-DO NOT USE!
+06.0 111 84.80 3090 4771 73183 10124 100.0 1.141 !DANGEROUS LOAD-DO NOT USE!
+08.0 113 86.40 3142 4933 78145 10190 100.0 1.110 !DANGEROUS LOAD-DO NOT USE!
+10.0 115 88.00 3194 5098 83470 10254 100.0 1.079 !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 80.00 3037 4609 72223 9500 100.0 1.155 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 104 80.00 2770 3835 48413 10090 97.4 1.363
Bullet : .338, 225, Nosler AccuBond 54357
Cartridge O.A.L. L6: 3.675 inch or 93.35 mm
Barrel Length : 26.0 inch or 660.4 mm
Powder : IMR 4831
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 84 64.00 2373 2812 31420 8309 94.9 1.663
-18.0 86 65.60 2430 2949 33545 8533 95.9 1.618
-16.0 88 67.20 2487 3089 35808 8745 96.8 1.576
-14.0 90 68.80 2543 3232 38218 8944 97.5 1.532
-12.0 92 70.40 2600 3377 40787 9129 98.2 1.486
-10.0 94 72.00 2656 3524 43524 9299 98.8 1.441
-08.0 96 73.60 2712 3674 46441 9454 99.2 1.398
-06.0 98 75.20 2767 3826 49551 9593 99.6 1.357
-04.0 100 76.80 2822 3979 52869 9714 99.8 1.318
-02.0 102 78.40 2877 4135 56409 9818 100.0 1.280 ! Near Maximum !
+00.0 104 80.00 2931 4292 60190 9904 100.0 1.243 ! Near Maximum !
+02.0 107 81.60 2984 4450 64231 9980 100.0 1.208 !DANGEROUS LOAD-DO NOT USE!
+04.0 109 83.20 3038 4610 68554 10053 100.0 1.174 !DANGEROUS LOAD-DO NOT USE!
+06.0 111 84.80 3090 4771 73183 10124 100.0 1.141 !DANGEROUS LOAD-DO NOT USE!
+08.0 113 86.40 3142 4933 78145 10190 100.0 1.110 !DANGEROUS LOAD-DO NOT USE!
+10.0 115 88.00 3194 5098 83470 10254 100.0 1.079 !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 80.00 3037 4609 72223 9500 100.0 1.155 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 104 80.00 2770 3835 48413 10090 97.4 1.363
