Originally Posted by dkac2
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I'm really looking to see what others have loaded the SS109's at. They do have a long bearing area compared to other 62's, so they will generate higher pressure with a similar load in a standard FMJ.
They are not known for being real accurate due to the insert anyway.
Thank you for your reply, anybody else have any good loads?
Thanks, John K
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What other 62gr bullets do you have in mind?
I ran some numbers on QL with the SS109 and Speer 62gr 1050 and a Max load of Tac. As you can see the Speer 62gr generated more PSI than the SS109.
Cartridge : .223 Rem.
Bullet : .224, 62, IMI FMJBT SS109
Cartridge O.A.L. L6: 2.260 inch or 57.40 mm
Barrel Length : 18.5 inch or 469.9 mm
Powder : Ramshot TAC
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 79 19.60 2314 737 27854 7054 82.6 1.189
-18.0 81 20.09 2373 775 29726 7305 84.0 1.157
-16.0 83 20.58 2431 814 31723 7553 85.4 1.126
-14.0 85 21.07 2490 854 33862 7796 86.8 1.096
-12.0 87 21.56 2550 895 36150 8035 88.1 1.067
-10.0 89 22.05 2609 937 38602 8267 89.4 1.036
-08.0 90 22.54 2669 981 41229 8492 90.6 1.005
-06.0 92 23.03 2729 1025 44047 8709 91.7 0.975
-04.0 94 23.52 2789 1071 47075 8917 92.8 0.947
-02.0 96 24.01 2850 1118 50315 9116 93.8 0.919
+00.0 98 24.50 2910 1166 53768 9305 94.7 0.892 ! Near Maximum !
+02.0 100 24.99 2970 1215 57471 9482 95.6 0.866 ! Near Maximum !
+04.0 102 25.48 3031 1265 61452 9648 96.4 0.841 ! Near Maximum !
+06.0 104 25.97 3091 1316 65738 9800 97.1 0.817 !DANGEROUS LOAD-DO NOT USE!
+08.0 106 26.46 3152 1368 70358 9938 97.8 0.793 !DANGEROUS LOAD-DO NOT USE!
+10.0 108 26.95 3213 1421 75344 10062 98.3 0.770 !DANGEROUS LOAD-DO NOT USE!
Cartridge : .223 Rem.
Bullet : .224, 62, Speer FMJ 1050
Cartridge O.A.L. L6: 2.260 inch or 57.40 mm
Barrel Length : 18.5 inch or 469.9 mm
Powder : Ramshot TAC
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 81 19.60 2347 758 29243 7058 83.2 1.165
-18.0 83 20.09 2407 797 31258 7306 84.7 1.133
-16.0 85 20.58 2467 838 33419 7550 86.1 1.102
-14.0 87 21.07 2528 880 35735 7789 87.5 1.072
-12.0 89 21.56 2588 922 38222 8022 88.8 1.040
-10.0 91 22.05 2649 966 40894 8248 90.0 1.009
-08.0 93 22.54 2711 1012 43767 8466 91.2 0.978
-06.0 95 23.03 2772 1058 46858 8676 92.3 0.948
-04.0 97 23.52 2834 1106 50188 8877 93.4 0.920
-02.0 99 24.01 2896 1154 53772 9066 94.4 0.892 ! Near Maximum !
+00.0 101 24.50 2957 1204 57606 9245 95.3 0.866 ! Near Maximum !
+02.0 103 24.99 3019 1255 61736 9411 96.1 0.840 !DANGEROUS LOAD-DO NOT USE!
+04.0 105 25.48 3081 1307 66197 9564 96.9 0.815 !DANGEROUS LOAD-DO NOT USE!
+06.0 108 25.97 3144 1360 71021 9702 97.6 0.791 !DANGEROUS LOAD-DO NOT USE!
+08.0 110 26.46 3206 1415 76248 9826 98.2 0.767 !DANGEROUS LOAD-DO NOT USE!
+10.0 112 26.95 3268 1470 81922 9933 98.7 0.745 !DANGEROUS LOAD-DO NOT USE!