Ladedata ønskes til 223

[dravis]

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Her er et eksempel med Norma 201

Cartridge : .223 Rem.
Bullet : .224, 65, Sierra SPBT 1395
Useable Case Capaci: 25.566 grain H2O = 1.660 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Norma 201

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 19,26 2430 852 28342 5540 87,6 1,426
-18,0 82 19,75 2490 895 30258 5712 88,9 1,388
-16,0 84 20,23 2550 938 32306 5880 90,1 1,351
-14,0 86 20,71 2610 983 34497 6042 91,3 1,315
-12,0 88 21,19 2670 1029 36841 6199 92,4 1,281
-10,0 90 21,67 2730 1075 39349 6349 93,4 1,243
-08,0 92 22,15 2789 1123 42033 6492 94,4 1,206
-06,0 94 22,64 2849 1172 44909 6627 95,2 1,171
-04,0 96 23,12 2909 1221 47991 6755 96,1 1,137
-02,0 98 23,60 2968 1272 51298 6873 96,8 1,104
+00,0 100 24,08 3028 1323 54849 6982 97,5 1,072 ! Near Maximum !
+02,0 102 24,56 3087 1375 58666 7081 98,1 1,042 ! Near Maximum !
+04,0 104 25,04 3146 1428 62774 7170 98,6 1,012 !DANGEROUS LOAD-DO NOT USE!
+06,0 106 25,52 3205 1482 67202 7248 99,0 0,984 !DANGEROUS LOAD-DO NOT USE!
+08,0 108 26,01 3263 1537 71981 7314 99,4 0,956 !DANGEROUS LOAD-DO NOT USE!
+10,0 110 26,49 3321 1592 77148 7369 99,7 0,929 !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 24,08 3169 1450 65655 6878 99,9 0,994 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 100 24,08 2839 1163 44466 6758 91,2 1,175

Hilsner
Dravis aka:FMJ
"Sapere Aude: Dare to KNOW!"
"Do not adjust your mind, there's a fault in reality"