Cartridge : .223 Rem. (SAAMI)
Bullet : .224, 75, Hornady ELD-M 22791
Useable Case Capaci: 25.862 grain H2O = 1.679 cm³
Cartridge O.A.L. L6: 2.477 inch = 62.92 mm
Barrel Length : 24.0 inch = 609.6 mm
Powder : Ramshot TAC *C

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 83 21.36 2445 996 35191 6057 88.0 1.373
-18.0 85 21.89 2505 1045 37651 6241 89.2 1.335
-16.0 87 22.43 2564 1095 40289 6420 90.4 1.294
-14.0 89 22.96 2624 1146 43117 6593 91.5 1.255
-12.0 91 23.50 2683 1199 46151 6760 92.6 1.217
-10.0 93 24.03 2743 1253 49408 6919 93.6 1.181
-08.0 96 24.56 2803 1308 52909 7071 94.5 1.146
-06.0 98 25.10 2862 1364 56675 7214 95.4 1.112 ! Near Maximum !
-04.0 100 25.63 2922 1422 60731 7347 96.2 1.080 ! Near Maximum !
-02.0 102 26.17 2981 1480 65104 7471 96.9 1.049 !DANGEROUS LOAD-DO NOT USE!
+00.0 104 26.70 3041 1540 69828 7585 97.5 1.019 !DANGEROUS LOAD-DO NOT USE!
+02.0 106 27.23 3100 1600 74937 7687 98.1 0.989 !DANGEROUS LOAD-DO NOT USE!
+04.0 108 27.77 3159 1662 80473 7778 98.6 0.961 !DANGEROUS LOAD-DO NOT USE!
+06.0 110 28.30 3219 1725 86485 7856 99.0 0.934 !DANGEROUS LOAD-DO NOT USE!
+08.0 112 28.84 3278 1789 93026 7921 99.4 0.908 !DANGEROUS LOAD-DO NOT USE!
+10.0 114 29.37 3337 1854 100163 7972 99.7 0.882 !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 26.70 3169 1672 82224 7483 99.9 0.953 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 10% relative to nominal value:
-Ba 104 26.70 2870 1372 57818 7363 91.7 1.104 ! Near Maximum !

I see about the same on QL. 70-75K give or take, before the heated up ammo..


Semper Fi